Spark Highlights Yttrium at Depth in Arapaima's Rare Earth System: 28 m at 200 ppm Y₂O₃ and 1,614 ppm Y₂O₃ in a Granite Grab Sample
Original announcement by cse on
- Company
- Spark Energy Minerals Inc.
- Ticker
- SPRK
- Exchange
- CSE
- Region
- Minas Gerais, Brazil
- Primary commodity
- Yttrium
- Secondary commodities
- Rare earth, Dysprosium, Terbium, Gallium
- Document categories
- Drill results
- Extracted
- 2026-10-20 18:03:57 UTC
Analysis by Minestarters Atlas
Atlas analysis published:
Minestarters Atlas analysis
Summary
Spark Energy Minerals Inc. has released a yttrium-focused review of its Arapaima Project, highlighting significant yttrium grades from previously published drilling and newly disclosed surface samples. Key results include 28 meters at 200 ppm Y₂O₃ from drilling and a high-grade grab sample of 1,614 ppm Y₂O₃. The company interprets these results as indicating potential for deeper, rock-hosted rare earth mineralization, with yttrium being a critical mineral subject to Chinese export licensing.
Reasoning: The company highlights significant yttrium grades from a review of prior drilling and new surface samples, emphasizing yttrium's critical mineral status and potential for deeper mineralization, despite the lack of new drilling and unknown true widths.
Positive factors
- High-grade yttrium intercept (1,614 ppm Y₂O₃ in grab sample)
- Significant yttrium grades over width (28 m at 200 ppm Y₂O₃)
- Yttrium is a critical mineral with strategic importance
- New surface sample results expand the dataset
- Interpretation suggests potential for deeper, rock-hosted mineralization
- QA/QC procedures are mentioned
Negative factors
- Drill results are from a review of previously published drilling, not new drilling
- True widths are not known
- Mineral hosts for yttrium in granite are not identified
- Grab samples are selective and not representative
- Surface samples are geochemical indicators, not grades of mineralization
- No economic significance should be attached to the ppm thresholds
- No mineral resource or economic analysis has been completed
Low confidence — this extraction should be reviewed alongside the original source.
Facts used in scoring: 19
Extracted facts
Stored fact records: 19. Some facts used in scoring do not have a stored record.
Drill Results (19)
ARA-RC-003Arapaima · yttriumGrade: 200Grade Unit: ppm Y₂O₃Intercept: 28 mHistorical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Hole ID
- ARA-RC-003
- Project
- Arapaima
- Commodity
- yttrium
- Region
- brazil
- Reported Region
- brazil
- Ticker
- SPRK
Geometry
- Grade
- 200
- Grade Unit
- ppm Y₂O₃
- Intercept
- 28 m
- From
- 62 m
- To
- 90 m
- Intercept Depth
- 62 m
Classification
- Deposit Type
- other
- Program
- exploration
- Sample Type
- drill
- Group ID
- ARA-RC-003:62-90
- Mining Method
- open_pit
Location
- Location
- Cruzeta
- Loc. Source
- document
QA/QC
- Laboratory
- SGS Geosol Laboratórios
- QA/QC Disclosed
- Yes
- QP Signed
- Yes
- QA/QC Methods
- standards, blanks, duplicates
Compositing
- Dilution Disclosed
- Yes
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Interp. Status
- scored
- Historical
- Yes
- Historical Source Date
- 2026-08-13T00:00:00.000Z
Dates
- Event date
- 2026-10-20T00:00:00.000Z
Reasoning: High-grade yttrium intercept from previously reported drilling, indicating potential at depth, but true width is unknown and economic significance is not established.
Positive factors
- High-grade yttrium
- Significant intercept length
Negative factors
- Previously reported drilling
- True width unknown
- Geochemical criteria, not economic cut-off
Rejected tags
Rejected tags — excluded from scoring because their label or evidence could not be verified.
Apparent Width OnlyRejected · negative
Interval given as downhole width with no true width or drill orientation — apparent width may overstate true thickness.
Reason: Lengths are down-hole or sampled lengths, and true widths are not known.
Evidence · text
“Lengths are down-hole or sampled lengths, and true widths are not known.”
QA/QC DisclosedRejected · positive
Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).
Reason: Blanks, field duplicates, and certified reference materials were inserted into the sample stream, and samples were analyzed by an ISO certified laboratory.
Evidence · text
“blanks, field duplicates and certified reference materials were inserted into the sample stream and were reported with the August 13 and August 27, 2026 releases. ... All samples were analyzed by SGS Geosol Laboratórios (Vespasiano, Minas Gerais, Brazil), an independent laboratory certified to ISO 9001:2015 and ISO 14001:2015”
Cut-off UndisclosedRejected · negative
High-grade interval reported without stating the cut-off grade used for compositing.
Reason: The 50 and 100 ppm thresholds are geochemical criteria used to describe the distribution of yttrium; they are not economic cut-off grades, and no economic significance should be attached to them.
Evidence · text
“The 50 and 100 ppm thresholds are geochemical criteria used to describe the distribution of yttrium; they are not economic cut-off grades, and no economic significance should be attached to them.”
Stale Data Re-releaseRejected · negative
Historical results re-announced with no new assays or reinterpretation — low genuine novelty.
Reason: The drill results are from a yttrium-focused review of previously published drilling, not new drilling.
Evidence · text
“yttrium-focused review of previously published drilling and road-cut results”
ARA-RC-003Arapaima · yttriumGrade: 201Grade Unit: ppm Y₂O₃Intercept: 24 mHistorical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Hole ID
- ARA-RC-003
- Project
- Arapaima
- Commodity
- yttrium
- Region
- brazil
- Reported Region
- brazil
- Ticker
- SPRK
Geometry
- Grade
- 201
- Grade Unit
- ppm Y₂O₃
- Intercept
- 24 m
- From
- 70 m
- To
- 94 m
- Intercept Depth
- 70 m
Classification
- Deposit Type
- other
- Program
- exploration
- Sample Type
- drill
- Group ID
- ARA-RC-003:70-94
- Mining Method
- open_pit
Location
- Location
- Cruzeta
- Loc. Source
- document
QA/QC
- Laboratory
- SGS Geosol Laboratórios
- QA/QC Disclosed
- Yes
- QP Signed
- Yes
- QA/QC Methods
- standards, blanks, duplicates
Compositing
- Dilution Disclosed
- Yes
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Interp. Status
- scored
- Historical
- Yes
- Historical Source Date
- 2026-08-13T00:00:00.000Z
Dates
- Event date
- 2026-10-20T00:00:00.000Z
Reasoning: High-grade yttrium intercept from previously reported drilling, interpreted as weathered granite, but true width is unknown and economic significance is not established.
Positive factors
- High-grade yttrium
- Significant intercept length
- Interpreted as weathered granite, suggesting deeper mineralization
Negative factors
- Previously reported drilling
- True width unknown
- Overlapping interval
- Geochemical criteria, not economic cut-off
Rejected tags
Rejected tags — excluded from scoring because their label or evidence could not be verified.
Apparent Width OnlyRejected · negative
Interval given as downhole width with no true width or drill orientation — apparent width may overstate true thickness.
Reason: Lengths are down-hole or sampled lengths, and true widths are not known.
Evidence · text
“Lengths are down-hole or sampled lengths, and true widths are not known.”
QA/QC DisclosedRejected · positive
Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).
Reason: Blanks, field duplicates, and certified reference materials were inserted into the sample stream, and samples were analyzed by an ISO certified laboratory.
Evidence · text
“blanks, field duplicates and certified reference materials were inserted into the sample stream and were reported with the August 13 and August 27, 2026 releases. ... All samples were analyzed by SGS Geosol Laboratórios (Vespasiano, Minas Gerais, Brazil), an independent laboratory certified to ISO 9001:2015 and ISO 14001:2015”
Cut-off UndisclosedRejected · negative
High-grade interval reported without stating the cut-off grade used for compositing.
Reason: The 50 and 100 ppm thresholds are geochemical criteria used to describe the distribution of yttrium; they are not economic cut-off grades, and no economic significance should be attached to them.
Evidence · text
“The 50 and 100 ppm thresholds are geochemical criteria used to describe the distribution of yttrium; they are not economic cut-off grades, and no economic significance should be attached to them.”
Stale Data Re-releaseRejected · negative
Historical results re-announced with no new assays or reinterpretation — low genuine novelty.
Reason: The drill results are from a yttrium-focused review of previously published drilling, not new drilling.
Evidence · text
“yttrium-focused review of previously published drilling and road-cut results”
ARA-RC-033Arapaima · yttriumGrade: 226Grade Unit: ppmIntercept: 8 mHistorical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Hole ID
- ARA-RC-033
- Project
- Arapaima
- Commodity
- yttrium
- Region
- brazil
- Reported Region
- brazil
- Ticker
- SPRK
Geometry
- Grade
- 226
- Grade Unit
- ppm
- Intercept
- 8 m
Classification
- Deposit Type
- other
- Program
- exploration
- Sample Type
- drill
- Group ID
- ARA-RC-033:null-null
- Mining Method
- open_pit
Location
- Location
- Cruzeta
- Loc. Source
- document
QA/QC
- Laboratory
- SGS Geosol Laboratórios
- QA/QC Disclosed
- Yes
- QP Signed
- Yes
- QA/QC Methods
- standards, blanks, duplicates
Compositing
- Dilution Disclosed
- Yes
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Interp. Status
- scored
- Historical
- Yes
- Historical Source Date
- 2026-08-13T00:00:00.000Z
Dates
- Event date
- 2026-10-20T00:00:00.000Z
Reasoning: High-grade yttrium intercept from previously reported drilling, but true width is unknown and economic significance is not established.
Positive factors
- High-grade yttrium
Negative factors
- Previously reported drilling
- True width unknown
- Geochemical criteria, not economic cut-off
Rejected tags
Rejected tags — excluded from scoring because their label or evidence could not be verified.
Apparent Width OnlyRejected · negative
Interval given as downhole width with no true width or drill orientation — apparent width may overstate true thickness.
Reason: Lengths are down-hole or sampled lengths, and true widths are not known.
Evidence · text
“Lengths are down-hole or sampled lengths, and true widths are not known.”
QA/QC DisclosedRejected · positive
Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).
Reason: Blanks, field duplicates, and certified reference materials were inserted into the sample stream, and samples were analyzed by an ISO certified laboratory.
Evidence · text
“blanks, field duplicates and certified reference materials were inserted into the sample stream and were reported with the August 13 and August 27, 2026 releases. ... All samples were analyzed by SGS Geosol Laboratórios (Vespasiano, Minas Gerais, Brazil), an independent laboratory certified to ISO 9001:2015 and ISO 14001:2015”
Cut-off UndisclosedRejected · negative
High-grade interval reported without stating the cut-off grade used for compositing.
Reason: The 50 and 100 ppm thresholds are geochemical criteria used to describe the distribution of yttrium; they are not economic cut-off grades, and no economic significance should be attached to them.
Evidence · text
“The 50 and 100 ppm thresholds are geochemical criteria used to describe the distribution of yttrium; they are not economic cut-off grades, and no economic significance should be attached to them.”
Stale Data Re-releaseRejected · negative
Historical results re-announced with no new assays or reinterpretation — low genuine novelty.
Reason: The drill results are from a yttrium-focused review of previously published drilling, not new drilling.
Evidence · text
“yttrium-focused review of previously published drilling and road-cut results”
ARA-RC-005Arapaima · yttriumGrade: 209Grade Unit: ppmIntercept: 4 mHistorical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Hole ID
- ARA-RC-005
- Project
- Arapaima
- Commodity
- yttrium
- Region
- brazil
- Reported Region
- brazil
- Ticker
- SPRK
Geometry
- Grade
- 209
- Grade Unit
- ppm
- Intercept
- 4 m
Classification
- Deposit Type
- other
- Program
- exploration
- Sample Type
- drill
- Group ID
- ARA-RC-005:null-null
- Mining Method
- open_pit
Location
- Location
- Cruzeta
- Loc. Source
- document
QA/QC
- Laboratory
- SGS Geosol Laboratórios
- QA/QC Disclosed
- Yes
- QP Signed
- Yes
- QA/QC Methods
- standards, blanks, duplicates
Compositing
- Dilution Disclosed
- Yes
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Interp. Status
- scored
- Historical
- Yes
- Historical Source Date
- 2026-08-13T00:00:00.000Z
Dates
- Event date
- 2026-10-20T00:00:00.000Z
Reasoning: High-grade yttrium intercept from previously reported drilling, but true width is unknown and economic significance is not established.
Positive factors
- High-grade yttrium
Negative factors
- Previously reported drilling
- True width unknown
- Geochemical criteria, not economic cut-off
Rejected tags
Rejected tags — excluded from scoring because their label or evidence could not be verified.
Apparent Width OnlyRejected · negative
Interval given as downhole width with no true width or drill orientation — apparent width may overstate true thickness.
Reason: Lengths are down-hole or sampled lengths, and true widths are not known.
Evidence · text
“Lengths are down-hole or sampled lengths, and true widths are not known.”
QA/QC DisclosedRejected · positive
Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).
Reason: Blanks, field duplicates, and certified reference materials were inserted into the sample stream, and samples were analyzed by an ISO certified laboratory.
Evidence · text
“blanks, field duplicates and certified reference materials were inserted into the sample stream and were reported with the August 13 and August 27, 2026 releases. ... All samples were analyzed by SGS Geosol Laboratórios (Vespasiano, Minas Gerais, Brazil), an independent laboratory certified to ISO 9001:2015 and ISO 14001:2015”
Cut-off UndisclosedRejected · negative
High-grade interval reported without stating the cut-off grade used for compositing.
Reason: The 50 and 100 ppm thresholds are geochemical criteria used to describe the distribution of yttrium; they are not economic cut-off grades, and no economic significance should be attached to them.
Evidence · text
“The 50 and 100 ppm thresholds are geochemical criteria used to describe the distribution of yttrium; they are not economic cut-off grades, and no economic significance should be attached to them.”
Stale Data Re-releaseRejected · negative
Historical results re-announced with no new assays or reinterpretation — low genuine novelty.
Reason: The drill results are from a yttrium-focused review of previously published drilling, not new drilling.
Evidence · text
“yttrium-focused review of previously published drilling and road-cut results”
ARA-RC-001Arapaima · yttriumGrade: 198Grade Unit: ppmIntercept: 8 mHistorical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Hole ID
- ARA-RC-001
- Project
- Arapaima
- Commodity
- yttrium
- Region
- brazil
- Reported Region
- brazil
- Ticker
- SPRK
Geometry
- Grade
- 198
- Grade Unit
- ppm
- Intercept
- 8 m
Classification
- Deposit Type
- other
- Program
- exploration
- Sample Type
- drill
- Group ID
- ARA-RC-001:null-null
- Mining Method
- open_pit
Location
- Location
- Cruzeta
- Loc. Source
- document
QA/QC
- Laboratory
- SGS Geosol Laboratórios
- QA/QC Disclosed
- Yes
- QP Signed
- Yes
- QA/QC Methods
- standards, blanks, duplicates
Compositing
- Dilution Disclosed
- Yes
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Interp. Status
- scored
- Historical
- Yes
- Historical Source Date
- 2026-08-13T00:00:00.000Z
Dates
- Event date
- 2026-10-20T00:00:00.000Z
Reasoning: High-grade yttrium intercept from previously reported drilling, but true width is unknown and economic significance is not established.
Positive factors
- High-grade yttrium
Negative factors
- Previously reported drilling
- True width unknown
- Geochemical criteria, not economic cut-off
Rejected tags
Rejected tags — excluded from scoring because their label or evidence could not be verified.
Apparent Width OnlyRejected · negative
Interval given as downhole width with no true width or drill orientation — apparent width may overstate true thickness.
Reason: Lengths are down-hole or sampled lengths, and true widths are not known.
Evidence · text
“Lengths are down-hole or sampled lengths, and true widths are not known.”
QA/QC DisclosedRejected · positive
Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).
Reason: Blanks, field duplicates, and certified reference materials were inserted into the sample stream, and samples were analyzed by an ISO certified laboratory.
Evidence · text
“blanks, field duplicates and certified reference materials were inserted into the sample stream and were reported with the August 13 and August 27, 2026 releases. ... All samples were analyzed by SGS Geosol Laboratórios (Vespasiano, Minas Gerais, Brazil), an independent laboratory certified to ISO 9001:2015 and ISO 14001:2015”
Cut-off UndisclosedRejected · negative
High-grade interval reported without stating the cut-off grade used for compositing.
Reason: The 50 and 100 ppm thresholds are geochemical criteria used to describe the distribution of yttrium; they are not economic cut-off grades, and no economic significance should be attached to them.
Evidence · text
“The 50 and 100 ppm thresholds are geochemical criteria used to describe the distribution of yttrium; they are not economic cut-off grades, and no economic significance should be attached to them.”
Stale Data Re-releaseRejected · negative
Historical results re-announced with no new assays or reinterpretation — low genuine novelty.
Reason: The drill results are from a yttrium-focused review of previously published drilling, not new drilling.
Evidence · text
“yttrium-focused review of previously published drilling and road-cut results”
ARA-RC-018Arapaima · yttriumGrade: 150Grade Unit: ppmIntercept: 10 mHistorical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Hole ID
- ARA-RC-018
- Project
- Arapaima
- Commodity
- yttrium
- Region
- brazil
- Reported Region
- brazil
- Ticker
- SPRK
Geometry
- Grade
- 150
- Grade Unit
- ppm
- Intercept
- 10 m
Classification
- Deposit Type
- other
- Program
- exploration
- Sample Type
- drill
- Group ID
- ARA-RC-018:null-null
- Mining Method
- open_pit
Location
- Location
- Cruzeta
- Loc. Source
- document
QA/QC
- Laboratory
- SGS Geosol Laboratórios
- QA/QC Disclosed
- Yes
- QP Signed
- Yes
- QA/QC Methods
- standards, blanks, duplicates
Compositing
- Dilution Disclosed
- Yes
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Interp. Status
- scored
- Historical
- Yes
- Historical Source Date
- 2026-08-13T00:00:00.000Z
Dates
- Event date
- 2026-10-20T00:00:00.000Z
Reasoning: Moderate-grade yttrium intercept from previously reported drilling, but true width is unknown and economic significance is not established.
Positive factors
- Moderate-grade yttrium
Negative factors
- Previously reported drilling
- True width unknown
- Geochemical criteria, not economic cut-off
Rejected tags
Rejected tags — excluded from scoring because their label or evidence could not be verified.
Apparent Width OnlyRejected · negative
Interval given as downhole width with no true width or drill orientation — apparent width may overstate true thickness.
Reason: Lengths are down-hole or sampled lengths, and true widths are not known.
Evidence · text
“Lengths are down-hole or sampled lengths, and true widths are not known.”
QA/QC DisclosedRejected · positive
Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).
Reason: Blanks, field duplicates, and certified reference materials were inserted into the sample stream, and samples were analyzed by an ISO certified laboratory.
Evidence · text
“blanks, field duplicates and certified reference materials were inserted into the sample stream and were reported with the August 13 and August 27, 2026 releases. ... All samples were analyzed by SGS Geosol Laboratórios (Vespasiano, Minas Gerais, Brazil), an independent laboratory certified to ISO 9001:2015 and ISO 14001:2015”
Cut-off UndisclosedRejected · negative
High-grade interval reported without stating the cut-off grade used for compositing.
Reason: The 50 and 100 ppm thresholds are geochemical criteria used to describe the distribution of yttrium; they are not economic cut-off grades, and no economic significance should be attached to them.
Evidence · text
“The 50 and 100 ppm thresholds are geochemical criteria used to describe the distribution of yttrium; they are not economic cut-off grades, and no economic significance should be attached to them.”
Stale Data Re-releaseRejected · negative
Historical results re-announced with no new assays or reinterpretation — low genuine novelty.
Reason: The drill results are from a yttrium-focused review of previously published drilling, not new drilling.
Evidence · text
“yttrium-focused review of previously published drilling and road-cut results”
ARA-RC-003Arapaima · yttriumGrade: 354Grade Unit: ppm Y₂O₃Intercept: 4 mHistorical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Hole ID
- ARA-RC-003
- Project
- Arapaima
- Commodity
- yttrium
- Region
- brazil
- Reported Region
- brazil
- Ticker
- SPRK
Geometry
- Grade
- 354
- Grade Unit
- ppm Y₂O₃
- Intercept
- 4 m
- From
- 70 m
- To
- 74 m
- Intercept Depth
- 70 m
Classification
- Deposit Type
- other
- Program
- exploration
- Sample Type
- drill
- Group ID
- ARA-RC-003:70-74
- Mining Method
- open_pit
Location
- Location
- Cruzeta
- Loc. Source
- document
QA/QC
- Laboratory
- SGS Geosol Laboratórios
- QA/QC Disclosed
- Yes
- QP Signed
- Yes
- QA/QC Methods
- standards, blanks, duplicates
Compositing
- Dilution Disclosed
- Yes
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Interp. Status
- scored
- Historical
- Yes
- Historical Source Date
- 2026-08-13T00:00:00.000Z
Dates
- Event date
- 2026-10-20T00:00:00.000Z
Reasoning: High-grade yttrium sub-interval from previously reported drilling, but true width is unknown and economic significance is not established.
Positive factors
- High-grade yttrium
Negative factors
- Previously reported drilling
- True width unknown
- Geochemical criteria, not economic cut-off
Rejected tags
Rejected tags — excluded from scoring because their label or evidence could not be verified.
Apparent Width OnlyRejected · negative
Interval given as downhole width with no true width or drill orientation — apparent width may overstate true thickness.
Reason: Lengths are down-hole or sampled lengths, and true widths are not known.
Evidence · text
“Lengths are down-hole or sampled lengths, and true widths are not known.”
QA/QC DisclosedRejected · positive
Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).
Reason: Blanks, field duplicates, and certified reference materials were inserted into the sample stream, and samples were analyzed by an ISO certified laboratory.
Evidence · text
“blanks, field duplicates and certified reference materials were inserted into the sample stream and were reported with the August 13 and August 27, 2026 releases. ... All samples were analyzed by SGS Geosol Laboratórios (Vespasiano, Minas Gerais, Brazil), an independent laboratory certified to ISO 9001:2015 and ISO 14001:2015”
Cut-off UndisclosedRejected · negative
High-grade interval reported without stating the cut-off grade used for compositing.
Reason: The 50 and 100 ppm thresholds are geochemical criteria used to describe the distribution of yttrium; they are not economic cut-off grades, and no economic significance should be attached to them.
Evidence · text
“The 50 and 100 ppm thresholds are geochemical criteria used to describe the distribution of yttrium; they are not economic cut-off grades, and no economic significance should be attached to them.”
Stale Data Re-releaseRejected · negative
Historical results re-announced with no new assays or reinterpretation — low genuine novelty.
Reason: The drill results are from a yttrium-focused review of previously published drilling, not new drilling.
Evidence · text
“yttrium-focused review of previously published drilling and road-cut results”
ARA-RC-003Arapaima · yttriumGrade: 294Grade Unit: ppmIntercept: 4 mHistorical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Hole ID
- ARA-RC-003
- Project
- Arapaima
- Commodity
- yttrium
- Region
- brazil
- Reported Region
- brazil
- Ticker
- SPRK
Geometry
- Grade
- 294
- Grade Unit
- ppm
- Intercept
- 4 m
- From
- 86 m
- To
- 90 m
- Intercept Depth
- 86 m
Classification
- Deposit Type
- other
- Program
- exploration
- Sample Type
- drill
- Group ID
- ARA-RC-003:86-90
- Mining Method
- open_pit
Location
- Location
- Cruzeta
- Loc. Source
- document
QA/QC
- Laboratory
- SGS Geosol Laboratórios
- QA/QC Disclosed
- Yes
- QP Signed
- Yes
- QA/QC Methods
- standards, blanks, duplicates
Compositing
- Dilution Disclosed
- Yes
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Interp. Status
- scored
- Historical
- Yes
- Historical Source Date
- 2026-08-13T00:00:00.000Z
Dates
- Event date
- 2026-10-20T00:00:00.000Z
Reasoning: High-grade yttrium sub-interval from previously reported drilling, but true width is unknown and economic significance is not established.
Positive factors
- High-grade yttrium
Negative factors
- Previously reported drilling
- True width unknown
- Geochemical criteria, not economic cut-off
Rejected tags
Rejected tags — excluded from scoring because their label or evidence could not be verified.
Apparent Width OnlyRejected · negative
Interval given as downhole width with no true width or drill orientation — apparent width may overstate true thickness.
Reason: Lengths are down-hole or sampled lengths, and true widths are not known.
Evidence · text
“Lengths are down-hole or sampled lengths, and true widths are not known.”
QA/QC DisclosedRejected · positive
Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).
Reason: Blanks, field duplicates, and certified reference materials were inserted into the sample stream, and samples were analyzed by an ISO certified laboratory.
Evidence · text
“blanks, field duplicates and certified reference materials were inserted into the sample stream and were reported with the August 13 and August 27, 2026 releases. ... All samples were analyzed by SGS Geosol Laboratórios (Vespasiano, Minas Gerais, Brazil), an independent laboratory certified to ISO 9001:2015 and ISO 14001:2015”
Cut-off UndisclosedRejected · negative
High-grade interval reported without stating the cut-off grade used for compositing.
Reason: The 50 and 100 ppm thresholds are geochemical criteria used to describe the distribution of yttrium; they are not economic cut-off grades, and no economic significance should be attached to them.
Evidence · text
“The 50 and 100 ppm thresholds are geochemical criteria used to describe the distribution of yttrium; they are not economic cut-off grades, and no economic significance should be attached to them.”
Stale Data Re-releaseRejected · negative
Historical results re-announced with no new assays or reinterpretation — low genuine novelty.
Reason: The drill results are from a yttrium-focused review of previously published drilling, not new drilling.
Evidence · text
“yttrium-focused review of previously published drilling and road-cut results”
ARA-RC-004Arapaima · yttriumGrade: 191Grade Unit: ppmIntercept: 6 mHistorical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Hole ID
- ARA-RC-004
- Project
- Arapaima
- Commodity
- yttrium
- Region
- brazil
- Reported Region
- brazil
- Ticker
- SPRK
Geometry
- Grade
- 191
- Grade Unit
- ppm
- Intercept
- 6 m
Classification
- Deposit Type
- other
- Program
- exploration
- Sample Type
- drill
- Group ID
- ARA-RC-004:null-null
- Mining Method
- open_pit
Location
- Location
- Cruzeta
- Loc. Source
- document
QA/QC
- Laboratory
- SGS Geosol Laboratórios
- QA/QC Disclosed
- Yes
- QP Signed
- Yes
- QA/QC Methods
- standards, blanks, duplicates
Compositing
- Dilution Disclosed
- Yes
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Interp. Status
- scored
- Historical
- Yes
- Historical Source Date
- 2026-08-13T00:00:00.000Z
Dates
- Event date
- 2026-10-20T00:00:00.000Z
Reasoning: High-grade yttrium intercept from previously reported drilling, but true width is unknown and economic significance is not established.
Positive factors
- High-grade yttrium
Negative factors
- Previously reported drilling
- True width unknown
- Geochemical criteria, not economic cut-off
Rejected tags
Rejected tags — excluded from scoring because their label or evidence could not be verified.
Apparent Width OnlyRejected · negative
Interval given as downhole width with no true width or drill orientation — apparent width may overstate true thickness.
Reason: Lengths are down-hole or sampled lengths, and true widths are not known.
Evidence · text
“Lengths are down-hole or sampled lengths, and true widths are not known.”
QA/QC DisclosedRejected · positive
Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).
Reason: Blanks, field duplicates, and certified reference materials were inserted into the sample stream, and samples were analyzed by an ISO certified laboratory.
Evidence · text
“blanks, field duplicates and certified reference materials were inserted into the sample stream and were reported with the August 13 and August 27, 2026 releases. ... All samples were analyzed by SGS Geosol Laboratórios (Vespasiano, Minas Gerais, Brazil), an independent laboratory certified to ISO 9001:2015 and ISO 14001:2015”
Cut-off UndisclosedRejected · negative
High-grade interval reported without stating the cut-off grade used for compositing.
Reason: The 50 and 100 ppm thresholds are geochemical criteria used to describe the distribution of yttrium; they are not economic cut-off grades, and no economic significance should be attached to them.
Evidence · text
“The 50 and 100 ppm thresholds are geochemical criteria used to describe the distribution of yttrium; they are not economic cut-off grades, and no economic significance should be attached to them.”
Stale Data Re-releaseRejected · negative
Historical results re-announced with no new assays or reinterpretation — low genuine novelty.
Reason: The drill results are from a yttrium-focused review of previously published drilling, not new drilling.
Evidence · text
“yttrium-focused review of previously published drilling and road-cut results”
ARA-RC-031Arapaima · yttriumGrade: 80Grade Unit: ppm Y₂O₃Intercept: 20 mHistorical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Hole ID
- ARA-RC-031
- Project
- Arapaima
- Commodity
- yttrium
- Region
- brazil
- Reported Region
- brazil
- Ticker
- SPRK
Geometry
- Grade
- 80
- Grade Unit
- ppm Y₂O₃
- Intercept
- 20 m
- From
- 28 m
- To
- 48 m
- Intercept Depth
- 28 m
Classification
- Deposit Type
- other
- Program
- exploration
- Sample Type
- drill
- Group ID
- ARA-RC-031:28-48
- Mining Method
- open_pit
Location
- Location
- Boa Vista
- Loc. Source
- document
QA/QC
- Laboratory
- SGS Geosol Laboratórios
- QA/QC Disclosed
- Yes
- QP Signed
- Yes
- QA/QC Methods
- standards, blanks, duplicates
Compositing
- Dilution Disclosed
- Yes
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Interp. Status
- scored
- Historical
- Yes
- Historical Source Date
- 2026-08-27T00:00:00.000Z
Dates
- Event date
- 2026-10-20T00:00:00.000Z
Reasoning: Moderate-grade yttrium intercept from previously reported drilling, but true width is unknown and economic significance is not established.
Positive factors
- Moderate intercept length
Negative factors
- Lower grade yttrium
- Previously reported drilling
- True width unknown
- Geochemical criteria, not economic cut-off
Rejected tags
Rejected tags — excluded from scoring because their label or evidence could not be verified.
Apparent Width OnlyRejected · negative
Interval given as downhole width with no true width or drill orientation — apparent width may overstate true thickness.
Reason: Lengths are down-hole or sampled lengths, and true widths are not known.
Evidence · text
“Lengths are down-hole or sampled lengths, and true widths are not known.”
QA/QC DisclosedRejected · positive
Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).
Reason: Blanks, field duplicates, and certified reference materials were inserted into the sample stream, and samples were analyzed by an ISO certified laboratory.
Evidence · text
“blanks, field duplicates and certified reference materials were inserted into the sample stream and were reported with the August 13 and August 27, 2026 releases. ... All samples were analyzed by SGS Geosol Laboratórios (Vespasiano, Minas Gerais, Brazil), an independent laboratory certified to ISO 9001:2015 and ISO 14001:2015”
Cut-off UndisclosedRejected · negative
High-grade interval reported without stating the cut-off grade used for compositing.
Reason: The 50 and 100 ppm thresholds are geochemical criteria used to describe the distribution of yttrium; they are not economic cut-off grades, and no economic significance should be attached to them.
Evidence · text
“The 50 and 100 ppm thresholds are geochemical criteria used to describe the distribution of yttrium; they are not economic cut-off grades, and no economic significance should be attached to them.”
Stale Data Re-releaseRejected · negative
Historical results re-announced with no new assays or reinterpretation — low genuine novelty.
Reason: The drill results are from a yttrium-focused review of previously published drilling, not new drilling.
Evidence · text
“yttrium-focused review of previously published drilling and road-cut results”
ARA-RC-006Arapaima · yttriumGrade: 57Grade Unit: ppmIntercept: 20 mHistorical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Hole ID
- ARA-RC-006
- Project
- Arapaima
- Commodity
- yttrium
- Region
- brazil
- Reported Region
- brazil
- Ticker
- SPRK
Geometry
- Grade
- 57
- Grade Unit
- ppm
- Intercept
- 20 m
Classification
- Deposit Type
- other
- Program
- exploration
- Sample Type
- drill
- Group ID
- ARA-RC-006:null-null
- Mining Method
- open_pit
Location
- Location
- Boa Vista
- Loc. Source
- document
QA/QC
- Laboratory
- SGS Geosol Laboratórios
- QA/QC Disclosed
- Yes
- QP Signed
- Yes
- QA/QC Methods
- standards, blanks, duplicates
Compositing
- Dilution Disclosed
- Yes
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Interp. Status
- scored
- Historical
- Yes
- Historical Source Date
- 2026-08-27T00:00:00.000Z
Dates
- Event date
- 2026-10-20T00:00:00.000Z
Reasoning: Lower-grade yttrium intercept from previously reported drilling, but true width is unknown and economic significance is not established.
Positive factors
- Moderate intercept length
Negative factors
- Lower grade yttrium
- Previously reported drilling
- True width unknown
- Geochemical criteria, not economic cut-off
Rejected tags
Rejected tags — excluded from scoring because their label or evidence could not be verified.
Apparent Width OnlyRejected · negative
Interval given as downhole width with no true width or drill orientation — apparent width may overstate true thickness.
Reason: Lengths are down-hole or sampled lengths, and true widths are not known.
Evidence · text
“Lengths are down-hole or sampled lengths, and true widths are not known.”
QA/QC DisclosedRejected · positive
Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).
Reason: Blanks, field duplicates, and certified reference materials were inserted into the sample stream, and samples were analyzed by an ISO certified laboratory.
Evidence · text
“blanks, field duplicates and certified reference materials were inserted into the sample stream and were reported with the August 13 and August 27, 2026 releases. ... All samples were analyzed by SGS Geosol Laboratórios (Vespasiano, Minas Gerais, Brazil), an independent laboratory certified to ISO 9001:2015 and ISO 14001:2015”
Cut-off UndisclosedRejected · negative
High-grade interval reported without stating the cut-off grade used for compositing.
Reason: The 50 and 100 ppm thresholds are geochemical criteria used to describe the distribution of yttrium; they are not economic cut-off grades, and no economic significance should be attached to them.
Evidence · text
“The 50 and 100 ppm thresholds are geochemical criteria used to describe the distribution of yttrium; they are not economic cut-off grades, and no economic significance should be attached to them.”
Stale Data Re-releaseRejected · negative
Historical results re-announced with no new assays or reinterpretation — low genuine novelty.
Reason: The drill results are from a yttrium-focused review of previously published drilling, not new drilling.
Evidence · text
“yttrium-focused review of previously published drilling and road-cut results”
ARA-RC-007Arapaima · yttriumGrade: 55Grade Unit: ppmIntercept: 22 mHistorical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Hole ID
- ARA-RC-007
- Project
- Arapaima
- Commodity
- yttrium
- Region
- brazil
- Reported Region
- brazil
- Ticker
- SPRK
Geometry
- Grade
- 55
- Grade Unit
- ppm
- Intercept
- 22 m
Classification
- Deposit Type
- other
- Program
- exploration
- Sample Type
- drill
- Group ID
- ARA-RC-007:null-null
- Mining Method
- open_pit
Location
- Location
- Boa Vista
- Loc. Source
- document
QA/QC
- Laboratory
- SGS Geosol Laboratórios
- QA/QC Disclosed
- Yes
- QP Signed
- Yes
- QA/QC Methods
- standards, blanks, duplicates
Compositing
- Dilution Disclosed
- Yes
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Interp. Status
- scored
- Historical
- Yes
- Historical Source Date
- 2026-08-27T00:00:00.000Z
Dates
- Event date
- 2026-10-20T00:00:00.000Z
Reasoning: Lower-grade yttrium intercept from previously reported drilling, but true width is unknown and economic significance is not established.
Positive factors
- Moderate intercept length
Negative factors
- Lower grade yttrium
- Previously reported drilling
- True width unknown
- Geochemical criteria, not economic cut-off
Rejected tags
Rejected tags — excluded from scoring because their label or evidence could not be verified.
Apparent Width OnlyRejected · negative
Interval given as downhole width with no true width or drill orientation — apparent width may overstate true thickness.
Reason: Lengths are down-hole or sampled lengths, and true widths are not known.
Evidence · text
“Lengths are down-hole or sampled lengths, and true widths are not known.”
QA/QC DisclosedRejected · positive
Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).
Reason: Blanks, field duplicates, and certified reference materials were inserted into the sample stream, and samples were analyzed by an ISO certified laboratory.
Evidence · text
“blanks, field duplicates and certified reference materials were inserted into the sample stream and were reported with the August 13 and August 27, 2026 releases. ... All samples were analyzed by SGS Geosol Laboratórios (Vespasiano, Minas Gerais, Brazil), an independent laboratory certified to ISO 9001:2015 and ISO 14001:2015”
Cut-off UndisclosedRejected · negative
High-grade interval reported without stating the cut-off grade used for compositing.
Reason: The 50 and 100 ppm thresholds are geochemical criteria used to describe the distribution of yttrium; they are not economic cut-off grades, and no economic significance should be attached to them.
Evidence · text
“The 50 and 100 ppm thresholds are geochemical criteria used to describe the distribution of yttrium; they are not economic cut-off grades, and no economic significance should be attached to them.”
Stale Data Re-releaseRejected · negative
Historical results re-announced with no new assays or reinterpretation — low genuine novelty.
Reason: The drill results are from a yttrium-focused review of previously published drilling, not new drilling.
Evidence · text
“yttrium-focused review of previously published drilling and road-cut results”
Fact 13Arapaima Project · yttriumGrade: 188Grade Unit: ppm Y₂O₃Intercept: 22 mHistorical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Project
- Arapaima Project
- Commodity
- yttrium
- Region
- brazil
- Reported Region
- Minas Gerais, Brazil
- Ticker
- SPRK
Geometry
- Grade
- 188
- Grade Unit
- ppm Y₂O₃
- Intercept
- 22 m
Classification
- Sample Type
- channel
- Mining Method
- open_pit
Location
- Location
- Cruzeta road cut
- Loc. Source
- document
QA/QC
- Laboratory
- SGS Geosol Laboratórios
- QA/QC Disclosed
- Yes
- Lab Certified
- Yes
- QP Signed
- Yes
- QA/QC Methods
- blanks, field_duplicates, standards
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Interp. Status
- scored
- Historical
- Yes
- Historical Source Date
- 2026-10-08T00:00:00.000Z
Dates
- Event date
- 2026-10-20T00:00:00.000Z
Reasoning: High-grade yttrium from a previously reported channel sample, indicating surface mineralization, but not a drill intercept and economic significance is not established.
Positive factors
- High-grade yttrium
- Significant sampled length
Negative factors
- Previously reported channel sample
- Not a drill intercept
- Geochemical criteria, not economic cut-off
Rejected tags
Rejected tags — excluded from scoring because their label or evidence could not be verified.
Apparent Width OnlyRejected · negative
Interval given as downhole width with no true width or drill orientation — apparent width may overstate true thickness.
Reason: Lengths are down-hole or sampled lengths, and true widths are not known.
Evidence · text
“Lengths are down-hole or sampled lengths, and true widths are not known.”
QA/QC DisclosedRejected · positive
Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).
Reason: Blanks, field duplicates, and certified reference materials were inserted into the sample stream, and samples were analyzed by an ISO certified laboratory.
Evidence · text
“blanks, field duplicates and certified reference materials were inserted into the sample stream and were reported with the August 13 and August 27, 2026 releases. ... All samples were analyzed by SGS Geosol Laboratórios (Vespasiano, Minas Gerais, Brazil), an independent laboratory certified to ISO 9001:2015 and ISO 14001:2015”
Cut-off UndisclosedRejected · negative
High-grade interval reported without stating the cut-off grade used for compositing.
Reason: The 50 and 100 ppm thresholds are geochemical criteria used to describe the distribution of yttrium; they are not economic cut-off grades, and no economic significance should be attached to them.
Evidence · text
“The 50 and 100 ppm thresholds are geochemical criteria used to describe the distribution of yttrium; they are not economic cut-off grades, and no economic significance should be attached to them.”
Stale Data Re-releaseRejected · negative
Historical results re-announced with no new assays or reinterpretation — low genuine novelty.
Reason: The road-cut channel sample was previously reported on October 8, 2026.
Evidence · text
“reported October 8, 2026”
Fact 14Arapaima Project · yttriumGrade: 1614Grade Unit: ppm Y₂O₃Historical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Project
- Arapaima Project
- Commodity
- yttrium
- Region
- brazil
- Reported Region
- Minas Gerais, Brazil
- Ticker
- SPRK
Geometry
- Grade
- 1614
- Grade Unit
- ppm Y₂O₃
Classification
- Sample Type
- surface
- Mining Method
- open_pit
Location
- Location
- Cruzeta road cut
- Loc. Source
- document
QA/QC
- Laboratory
- SGS Geosol Laboratórios
- QA/QC Disclosed
- Yes
- Lab Certified
- Yes
- QP Signed
- Yes
- QA/QC Methods
- blanks, field_duplicates, standards
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Interp. Status
- scored
- Historical
- Yes
- Historical Source Date
- 2026-10-08T00:00:00.000Z
Dates
- Event date
- 2026-10-20T00:00:00.000Z
Reasoning: Exceptionally high-grade yttrium from a selective grab sample, previously reported, indicating strong surface mineralization but not representative of the granite.
Positive factors
- Exceptionally high-grade yttrium
Negative factors
- Selective grab sample, not representative
- Previously reported
- Geochemical criteria, not economic cut-off
Rejected tags
Rejected tags — excluded from scoring because their label or evidence could not be verified.
Bonanza InterceptRejected · positive
Exceptionally high-grade zone, well above the deposit-type norm.
Reason: 1,614 ppm Y₂O₃ is an exceptionally high grade for yttrium, well above typical rare earth grades.
Evidence · text
“1,614 ppm Y₂O₃ in grab sample ARA-CN-008-05”
QA/QC DisclosedRejected · positive
Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).
Reason: Blanks, field duplicates, and certified reference materials were inserted into the sample stream, and samples were analyzed by an ISO certified laboratory.
Evidence · text
“blanks, field duplicates and certified reference materials were inserted into the sample stream and were reported with the August 13 and August 27, 2026 releases. ... All samples were analyzed by SGS Geosol Laboratórios (Vespasiano, Minas Gerais, Brazil), an independent laboratory certified to ISO 9001:2015 and ISO 14001:2015”
Cut-off UndisclosedRejected · negative
High-grade interval reported without stating the cut-off grade used for compositing.
Reason: The 50 and 100 ppm thresholds are geochemical criteria used to describe the distribution of yttrium; they are not economic cut-off grades, and no economic significance should be attached to them.
Evidence · text
“The 50 and 100 ppm thresholds are geochemical criteria used to describe the distribution of yttrium; they are not economic cut-off grades, and no economic significance should be attached to them.”
Stale Data Re-releaseRejected · negative
Historical results re-announced with no new assays or reinterpretation — low genuine novelty.
Reason: The grab sample was previously reported on October 8, 2026.
Evidence · text
“reported on October 8, 2026”
Fact 15Arapaima Project · dysprosiumGrade: 333Grade Unit: ppm Dy₂O₃Historical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Project
- Arapaima Project
- Commodity
- dysprosium
- Region
- brazil
- Reported Region
- Minas Gerais, Brazil
- Ticker
- SPRK
Geometry
- Grade
- 333
- Grade Unit
- ppm Dy₂O₃
Classification
- Sample Type
- surface
- Mining Method
- open_pit
Location
- Location
- Cruzeta road cut
- Loc. Source
- document
QA/QC
- Laboratory
- SGS Geosol Laboratórios
- QA/QC Disclosed
- Yes
- Lab Certified
- Yes
- QP Signed
- Yes
- QA/QC Methods
- blanks, field_duplicates, standards
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Interp. Status
- scored
- Historical
- Yes
- Historical Source Date
- 2026-10-08T00:00:00.000Z
Dates
- Event date
- 2026-10-20T00:00:00.000Z
Reasoning: High-grade dysprosium from a selective grab sample, previously reported, indicating strong surface mineralization but not representative of the granite.
Positive factors
- High-grade dysprosium
Negative factors
- Selective grab sample, not representative
- Previously reported
- Geochemical criteria, not economic cut-off
Rejected tags
Rejected tags — excluded from scoring because their label or evidence could not be verified.
QA/QC DisclosedRejected · positive
Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).
Reason: Blanks, field duplicates, and certified reference materials were inserted into the sample stream, and samples were analyzed by an ISO certified laboratory.
Evidence · text
“blanks, field duplicates and certified reference materials were inserted into the sample stream and were reported with the August 13 and August 27, 2026 releases. ... All samples were analyzed by SGS Geosol Laboratórios (Vespasiano, Minas Gerais, Brazil), an independent laboratory certified to ISO 9001:2015 and ISO 14001:2015”
Cut-off UndisclosedRejected · negative
High-grade interval reported without stating the cut-off grade used for compositing.
Reason: The 50 and 100 ppm thresholds are geochemical criteria used to describe the distribution of yttrium; they are not economic cut-off grades, and no economic significance should be attached to them.
Evidence · text
“The 50 and 100 ppm thresholds are geochemical criteria used to describe the distribution of yttrium; they are not economic cut-off grades, and no economic significance should be attached to them.”
Stale Data Re-releaseRejected · negative
Historical results re-announced with no new assays or reinterpretation — low genuine novelty.
Reason: The grab sample was previously reported on October 8, 2026.
Evidence · text
“reported on October 8, 2026”
Fact 16Arapaima Project · terbiumGrade: 68Grade Unit: ppm Tb₄O₇Historical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Project
- Arapaima Project
- Commodity
- terbium
- Region
- brazil
- Reported Region
- Minas Gerais, Brazil
- Ticker
- SPRK
Geometry
- Grade
- 68
- Grade Unit
- ppm Tb₄O₇
Classification
- Sample Type
- surface
- Mining Method
- open_pit
Location
- Location
- Cruzeta road cut
- Loc. Source
- document
QA/QC
- Laboratory
- SGS Geosol Laboratórios
- QA/QC Disclosed
- Yes
- Lab Certified
- Yes
- QP Signed
- Yes
- QA/QC Methods
- blanks, field_duplicates, standards
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Interp. Status
- scored
- Historical
- Yes
- Historical Source Date
- 2026-10-08T00:00:00.000Z
Dates
- Event date
- 2026-10-20T00:00:00.000Z
Reasoning: High-grade terbium from a selective grab sample, previously reported, indicating strong surface mineralization but not representative of the granite.
Positive factors
- High-grade terbium
Negative factors
- Selective grab sample, not representative
- Previously reported
- Geochemical criteria, not economic cut-off
Rejected tags
Rejected tags — excluded from scoring because their label or evidence could not be verified.
QA/QC DisclosedRejected · positive
Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).
Reason: Blanks, field duplicates, and certified reference materials were inserted into the sample stream, and samples were analyzed by an ISO certified laboratory.
Evidence · text
“blanks, field duplicates and certified reference materials were inserted into the sample stream and were reported with the August 13 and August 27, 2026 releases. ... All samples were analyzed by SGS Geosol Laboratórios (Vespasiano, Minas Gerais, Brazil), an independent laboratory certified to ISO 9001:2015 and ISO 14001:2015”
Cut-off UndisclosedRejected · negative
High-grade interval reported without stating the cut-off grade used for compositing.
Reason: The 50 and 100 ppm thresholds are geochemical criteria used to describe the distribution of yttrium; they are not economic cut-off grades, and no economic significance should be attached to them.
Evidence · text
“The 50 and 100 ppm thresholds are geochemical criteria used to describe the distribution of yttrium; they are not economic cut-off grades, and no economic significance should be attached to them.”
Stale Data Re-releaseRejected · negative
Historical results re-announced with no new assays or reinterpretation — low genuine novelty.
Reason: The grab sample was previously reported on October 8, 2026.
Evidence · text
“reported on October 8, 2026”
Fact 17Arapaima Project · yttriumGrade: 507Grade Unit: ppm Y₂O₃View all detailsHide details
Identity
- Project
- Arapaima Project
- Commodity
- yttrium
- Region
- brazil
- Reported Region
- Minas Gerais, Brazil
- Ticker
- SPRK
Geometry
- Grade
- 507
- Grade Unit
- ppm Y₂O₃
Classification
- Sample Type
- surface
- Mining Method
- open_pit
Location
- Location
- Boa Vista
- Loc. Source
- document
QA/QC
- Laboratory
- SGS Geosol Laboratórios
- QA/QC Disclosed
- Yes
- Lab Certified
- Yes
- QP Signed
- Yes
- QA/QC Methods
- blanks, field_duplicates, standards
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-10-20T00:00:00.000Z
Reasoning: Newly disclosed high-grade yttrium in a soil sample, indicating potential, but it is a geochemical indicator and not a direct grade of mineralization.
Positive factors
- High-grade yttrium
- Newly disclosed surface sample
Negative factors
- Soil sample is a geochemical indicator, not a grade of mineralization
- Geochemical criteria, not economic cut-off
Rejected tags
Rejected tags — excluded from scoring because their label or evidence could not be verified.
QA/QC DisclosedRejected · positive
Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).
Reason: Blanks, field duplicates, and certified reference materials were inserted into the sample stream, and samples were analyzed by an ISO certified laboratory.
Evidence · text
“blanks, field duplicates and certified reference materials were inserted into the sample stream and were reported with the August 13 and August 27, 2026 releases. ... All samples were analyzed by SGS Geosol Laboratórios (Vespasiano, Minas Gerais, Brazil), an independent laboratory certified to ISO 9001:2015 and ISO 14001:2015”
Cut-off UndisclosedRejected · negative
High-grade interval reported without stating the cut-off grade used for compositing.
Reason: The 50 and 100 ppm thresholds are geochemical criteria used to describe the distribution of yttrium; they are not economic cut-off grades, and no economic significance should be attached to them.
Evidence · text
“The 50 and 100 ppm thresholds are geochemical criteria used to describe the distribution of yttrium; they are not economic cut-off grades, and no economic significance should be attached to them.”
Fact 18Arapaima Project · yttriumGrade: 349Grade Unit: ppm Y₂O₃View all detailsHide details
Identity
- Project
- Arapaima Project
- Commodity
- yttrium
- Region
- brazil
- Reported Region
- Minas Gerais, Brazil
- Ticker
- SPRK
Geometry
- Grade
- 349
- Grade Unit
- ppm Y₂O₃
Classification
- Sample Type
- surface
- Mining Method
- open_pit
Location
- Location
- Cruzeta
- Loc. Source
- document
QA/QC
- Laboratory
- SGS Geosol Laboratórios
- QA/QC Disclosed
- Yes
- Lab Certified
- Yes
- QP Signed
- Yes
- QA/QC Methods
- blanks, field_duplicates, standards
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-10-20T00:00:00.000Z
Reasoning: Newly disclosed high-grade yttrium in a stream-sediment sample, indicating potential, but it is a geochemical indicator and not a direct grade of mineralization.
Positive factors
- High-grade yttrium
- Newly disclosed surface sample
Negative factors
- Stream-sediment sample is a geochemical indicator, not a grade of mineralization
- Geochemical criteria, not economic cut-off
Rejected tags
Rejected tags — excluded from scoring because their label or evidence could not be verified.
QA/QC DisclosedRejected · positive
Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).
Reason: Blanks, field duplicates, and certified reference materials were inserted into the sample stream, and samples were analyzed by an ISO certified laboratory.
Evidence · text
“blanks, field duplicates and certified reference materials were inserted into the sample stream and were reported with the August 13 and August 27, 2026 releases. ... All samples were analyzed by SGS Geosol Laboratórios (Vespasiano, Minas Gerais, Brazil), an independent laboratory certified to ISO 9001:2015 and ISO 14001:2015”
Cut-off UndisclosedRejected · negative
High-grade interval reported without stating the cut-off grade used for compositing.
Reason: The 50 and 100 ppm thresholds are geochemical criteria used to describe the distribution of yttrium; they are not economic cut-off grades, and no economic significance should be attached to them.
Evidence · text
“The 50 and 100 ppm thresholds are geochemical criteria used to describe the distribution of yttrium; they are not economic cut-off grades, and no economic significance should be attached to them.”
Fact 19Arapaima Project · yttriumGrade: 325Grade Unit: ppm Y₂O₃View all detailsHide details
Identity
- Project
- Arapaima Project
- Commodity
- yttrium
- Region
- brazil
- Reported Region
- Minas Gerais, Brazil
- Ticker
- SPRK
Geometry
- Grade
- 325
- Grade Unit
- ppm Y₂O₃
Classification
- Sample Type
- surface
- Mining Method
- open_pit
QA/QC
- Laboratory
- SGS Geosol Laboratórios
- QA/QC Disclosed
- Yes
- Lab Certified
- Yes
- QP Signed
- Yes
- QA/QC Methods
- blanks, field_duplicates, standards
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-10-20T00:00:00.000Z
Reasoning: Newly disclosed high-grade yttrium in a stream-sediment sample, indicating potential, but it is a geochemical indicator and not a direct grade of mineralization.
Positive factors
- High-grade yttrium
- Newly disclosed surface sample
Negative factors
- Stream-sediment sample is a geochemical indicator, not a grade of mineralization
- Geochemical criteria, not economic cut-off
Rejected tags
Rejected tags — excluded from scoring because their label or evidence could not be verified.
QA/QC DisclosedRejected · positive
Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).
Reason: Blanks, field duplicates, and certified reference materials were inserted into the sample stream, and samples were analyzed by an ISO certified laboratory.
Evidence · text
“blanks, field duplicates and certified reference materials were inserted into the sample stream and were reported with the August 13 and August 27, 2026 releases. ... All samples were analyzed by SGS Geosol Laboratórios (Vespasiano, Minas Gerais, Brazil), an independent laboratory certified to ISO 9001:2015 and ISO 14001:2015”
Cut-off UndisclosedRejected · negative
High-grade interval reported without stating the cut-off grade used for compositing.
Reason: The 50 and 100 ppm thresholds are geochemical criteria used to describe the distribution of yttrium; they are not economic cut-off grades, and no economic significance should be attached to them.
Evidence · text
“The 50 and 100 ppm thresholds are geochemical criteria used to describe the distribution of yttrium; they are not economic cut-off grades, and no economic significance should be attached to them.”
How Atlas produces this analysis
Minestarters Atlas uses automated extraction to summarize mining announcements, identify reported measurements, and classify supporting evidence. Sentiment reflects the extracted narrative and classification rules; it is an interpretation, not a reported measurement. Evidence quotes and context are provided where available. Missing data, low-confidence results, and review flags indicate limitations. Check the original publisher announcement before relying on an interpretation.