MGU: New Assays Define High-Desorption Magnet REEs (TbDy & NdPr)
Original announcement by asx on
- Company
- Magnum Mining and Exploration Limited
- Ticker
- MGU
- Exchange
- ASX
- Region
- Goiás, Brazil
- Primary commodity
- Rare earths
- Secondary commodities
- None reported
- Document categories
- Drill results
- Extracted
- 2026-10-11 23:16:37 UTC
Analysis by Minestarters Atlas
Atlas analysis published:
Minestarters Atlas analysis
Summary
Magnum Mining and Exploration Limited announced new assay results from 119 auger holes at its Piracanjuba North rare earth project in Brazil, defining high-desorption zones with enriched heavy (TbDy) and light (NdPr) magnet rare earths. Key intercepts include 8m at 428 ppm D-TREO from 6m in PIR-AH-0501 and 6m at 461 ppm D-TREO with 18.3 ppm D-TbDy from 6m in PIR-AH-0494. These results reinforce a broad and repeatable granite-hosted IAC-style system, with 33% of new holes ending in mineralization, and support the upcoming maiden JORC Mineral Resource Estimate targeted for November 2026.
Reasoning: The announcement reports significant new high-grade and high-desorption magnet rare earth intersections from 119 auger holes, expanding the known mineralized footprint and providing strong support for an upcoming maiden JORC MRE. The results are generally above the project average and include several strong grade-thickness intercepts.
Positive factors
- High-grade magnet REE intersections (TbDy, NdPr)
- Broad and repeatable mineralization over a large area (32.5 km² Plateau Zone)
- Significant number of new holes with high D-TREO grades
- Holes ending in mineralization, indicating potential for deeper extensions
- Infill drilling underway to support Maiden Mineral Resource Estimate
- JORC compliant reporting
- QP signed off
- Detailed QA/QC disclosed
Negative factors
- D-prefix grades are screening indicators, not metallurgical or process recovery
- True widths are not established
- No umpire laboratory program reported for this batch
Facts used in scoring: 15
Classification and evidence
Bonanza Interceptpositive
Exceptionally high-grade zone, well above the deposit-type norm.
Why it applies: The sub-interval of 2m at 946 ppm D-TREO in PIR-AH-0420 is an exceptionally high-grade zone for rare earths, well above the project average.
Evidence · table
“946”
Context: 2 m from 12 m
QA/QC Disclosedpositive
Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).
Why it applies: The release includes detailed QA/QC disclosure in JORC Table 1, mentioning certified reference materials, blanks, and field duplicates, and analysis by ALS.
Evidence · text
“Company QAQC samples include certified reference materials, blanks and field duplicates. ALS preparation records used for Piracanjuba include received-weight and login controls, fine crushing to approximately 70% passing 2 mm, riffle splitting and pulverising up to 250 g to approximately 85% passing 75 μm, together with ALS crushing and pulverising QC procedures.”
Compositing Transparentpositive
Cut-off grade and internal dilution rules are clearly stated for reported intervals.
Why it applies: The compositing rules for reported intervals are clearly stated: 'longest run in each featured hole in which every original sample exceeds 300 ppm D-TREO' and 'including' interval is 'highest-D-TREO original sample within that same run'.
Evidence · text
“The selected intervals below show the longest run in each featured hole in which every original sample exceeds 300 ppm D-TREO. The “including” line is the highest-D-TREO original sample within that same run.”
Apparent Width Onlynegative
Interval given as downhole width with no true width or drill orientation — apparent width may overstate true thickness.
Why it applies: The document explicitly states that reported intercepts are apparent down-hole lengths from vertical auger drilling and true widths are not established.
Evidence · text
“Reported intercepts are apparent down-hole lengths from vertical auger drilling. Because the exploration target is a shallow weathered-profile system, vertical intervals may locally approximate vertical profile thickness, but true widths are not established.”
Infill Drillingneutral
Confirmatory drilling to raise resource confidence, not new discovery.
Why it applies: The release states that a subsequent infill programme is underway to delineate higher-response zones and support geological confidence.
Evidence · text
“The subsequent infill programme is underway across the Plateau, with approximately 751 m completed to date, to delineate higher-response zones and support geological confidence, mineralogy, representative metallurgical sampling and subsequent study work.”
Maiden Resourceneutral · Story-specific tag
First formal MRE for the project — establishes baseline but typically exploration-stage with high Inferred component.
Why it applies: The company is targeting a Maiden JORC Mineral Resource Estimate for November 2026.
Evidence · text
“Maiden JORC Mineral Resource Estimate targeted for November 2026”
JORC Compliantpositive · Story-specific tag
Resource estimate prepared in compliance with JORC Code (Australia) — high reporting standard.
Why it applies: The information is based on and fairly represents information prepared and compiled by a Competent Person as defined in the JORC Code 2012.
Evidence · text
“The information in this announcement that relates to Exploration Results is based on, and fairly represents, information and supporting documentation prepared and compiled by Leonardo Deringer Fraga, P.Geo., Principal Geologist and Founder of Big Ben Mining Consultoria, contractor and Exploration Manager for Magnum. Mr Fraga is a Professional Geoscientist registered with Engineers and Geoscientists British Columbia (EGBC #61611), a Recognised Professional Organisation for the purposes of the JORC Code 2012. Mr Fraga has sufficient experience relevant to the style of mineralisation and type of deposit under consideration and to the activities being undertaken to qualify as a Competent Person as defined in the JORC Code 2012.”
Metal Equivalent Opaquenegative
Metal equivalent grade reported without disclosing the price, recovery, or payability assumptions used.
Why it applies: D-prefix grades are described as laboratory desorption-screening results and screening indicators, not metallurgical or process recovery, and no price or recovery assumptions are disclosed for them.
Evidence · text
“D-prefix grades are laboratory desorption-screening results, in which a mild salt solution (ammonium sulphate, initial pH 4) is used to release ion-exchangeable rare earths from the sample. Apparent desorption is the ratio of desorbed grade to matched head grade. It is a screening indicator and is not metallurgical or process recovery.”
Extracted facts
Stored fact records: 15. Some facts used in scoring do not have a stored record.
Drill Results (15)
PIR-AH-0420Piracanjuba North · rare_earthsGrade: 626Grade Unit: ppmIntercept: 5 mView all detailsHide details
Identity
- Hole ID
- PIR-AH-0420
- Project
- Piracanjuba North
- Commodity
- rare_earths
- Region
- brazil
- Reported Region
- brazil
- Ticker
- MGU
Geometry
- Grade
- 626
- Grade Unit
- ppm
- Intercept
- 5 m
- From
- 10 m
- To
- 15 m
- Hole Depth
- 15 m
- Intercept Depth
- 10 m
Classification
- Deposit Type
- other
- Program
- mixed
- Sample Type
- drill
- Group ID
- PIR-AH-0420:10-15
- Mining Method
- open_pit
Location
- Easting
- 714289.3
- Northing
- 8095745.24
- CRS
- SIRGAS 2000 / UTM Zone 22S
- Elevation
- 764.99 m
- Dip
- -90 °
- Loc. Confidence
- high
- Loc. Source
- document
QA/QC
- Laboratory
- ALS
- QA/QC Disclosed
- Yes
- Lab Certified
- Yes
- QP Signed
- Yes
- QA/QC Methods
- standards, blanks, duplicates, umpire
Deleterious
- Deleterious Flag
- No
Metal Equivalent
- Assumptions Disclosed
- No
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-10-11T00:00:00.000Z
Reasoning: This intercept of 5m at 626 ppm D-TREO is significantly above the project average grade of 503 ppm, indicating strong mineralization, and the hole ends in mineralization, suggesting potential for extension.
Positive factors
- High grade for rare earths
- Above project average grade
- Good intercept length
- Hole ends in mineralization
- JORC compliant reporting
- QP signed off
- Detailed QA/QC disclosed
Negative factors
- Apparent width only
- D-prefix grades are screening indicators, not metallurgical recovery
- No umpire laboratory program reported
Evidence · table
“626”
Context: 5 m from 10 m to EOH
Tags used in scoring
QA/QC Disclosedpositive
Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).
Why it applies: qaqc_disclosed is true
Cut-off Undisclosednegative
High-grade interval reported without stating the cut-off grade used for compositing.
Why it applies: no cutoff_grade was stated
Infill Drillingneutral
Confirmatory drilling to raise resource confidence, not new discovery.
Why it applies: drill_program_type is "mixed"
PIR-AH-0420Piracanjuba North · rare_earthsGrade: 946Grade Unit: ppmIntercept: 2 mView all detailsHide details
Identity
- Hole ID
- PIR-AH-0420
- Project
- Piracanjuba North
- Commodity
- rare_earths
- Region
- brazil
- Reported Region
- brazil
- Ticker
- MGU
Geometry
- Grade
- 946
- Grade Unit
- ppm
- Intercept
- 2 m
- From
- 12 m
- To
- 14 m
- Hole Depth
- 15 m
- Intercept Depth
- 10 m
Classification
- Deposit Type
- other
- Program
- mixed
- Sample Type
- drill
- Group ID
- PIR-AH-0420:12-14
- Mining Method
- open_pit
Location
- Easting
- 714289.3
- Northing
- 8095745.24
- CRS
- SIRGAS 2000 / UTM Zone 22S
- Elevation
- 764.99 m
- Dip
- -90 °
- Loc. Confidence
- high
- Loc. Source
- document
QA/QC
- Laboratory
- ALS
- QA/QC Disclosed
- Yes
- Lab Certified
- Yes
- QP Signed
- Yes
- QA/QC Methods
- standards, blanks, duplicates, umpire
Deleterious
- Deleterious Flag
- No
Metal Equivalent
- Assumptions Disclosed
- No
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-10-11T00:00:00.000Z
Reasoning: This sub-interval of 2m at 946 ppm D-TREO represents a bonanza grade for rare earths, significantly exceeding the project average and indicating a very high-grade zone within the broader intercept.
Positive factors
- Bonanza Intercept for rare earths
- Significantly above project average grade
- High-grade sub-interval
- JORC compliant reporting
- QP signed off
- Detailed QA/QC disclosed
Negative factors
- Apparent width only
- D-prefix grades are screening indicators, not metallurgical recovery
- No umpire laboratory program reported
Evidence · table
“946”
Context: 2 m from 12 m
Tags used in scoring
QA/QC Disclosedpositive
Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).
Why it applies: qaqc_disclosed is true
Cut-off Undisclosednegative
High-grade interval reported without stating the cut-off grade used for compositing.
Why it applies: no cutoff_grade was stated
Infill Drillingneutral
Confirmatory drilling to raise resource confidence, not new discovery.
Why it applies: drill_program_type is "mixed"
PIR-AH-0447Piracanjuba North · rare_earthsGrade: 518Grade Unit: ppmIntercept: 4 mView all detailsHide details
Identity
- Hole ID
- PIR-AH-0447
- Project
- Piracanjuba North
- Commodity
- rare_earths
- Region
- brazil
- Reported Region
- brazil
- Ticker
- MGU
Geometry
- Grade
- 518
- Grade Unit
- ppm
- Intercept
- 4 m
- From
- 14 m
- To
- 18 m
- Hole Depth
- 18 m
- Intercept Depth
- 14 m
Classification
- Deposit Type
- other
- Program
- mixed
- Sample Type
- drill
- Group ID
- PIR-AH-0447:14-18
- Mining Method
- open_pit
Location
- Easting
- 713340.63
- Northing
- 8093175.07
- CRS
- SIRGAS 2000 / UTM Zone 22S
- Elevation
- 831.7 m
- Dip
- -90 °
- Loc. Confidence
- high
- Loc. Source
- document
QA/QC
- Laboratory
- ALS
- QA/QC Disclosed
- Yes
- Lab Certified
- Yes
- QP Signed
- Yes
- QA/QC Methods
- standards, blanks, duplicates, umpire
Deleterious
- Deleterious Flag
- No
Metal Equivalent
- Assumptions Disclosed
- No
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-10-11T00:00:00.000Z
Reasoning: This intercept of 4m at 518 ppm D-TREO is above the project average grade of 503 ppm, indicating strong mineralization, and the hole ends in mineralization, suggesting potential for extension.
Positive factors
- High grade for rare earths
- Above project average grade
- Good intercept length
- Hole ends in mineralization
- JORC compliant reporting
- QP signed off
- Detailed QA/QC disclosed
Negative factors
- Apparent width only
- D-prefix grades are screening indicators, not metallurgical recovery
- No umpire laboratory program reported
Evidence · table
“518”
Context: 4 m from 14 m to EOH
Tags used in scoring
QA/QC Disclosedpositive
Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).
Why it applies: qaqc_disclosed is true
Cut-off Undisclosednegative
High-grade interval reported without stating the cut-off grade used for compositing.
Why it applies: no cutoff_grade was stated
Infill Drillingneutral
Confirmatory drilling to raise resource confidence, not new discovery.
Why it applies: drill_program_type is "mixed"
PIR-AH-0447Piracanjuba North · rare_earthsGrade: 719Grade Unit: ppmIntercept: 2 mView all detailsHide details
Identity
- Hole ID
- PIR-AH-0447
- Project
- Piracanjuba North
- Commodity
- rare_earths
- Region
- brazil
- Reported Region
- brazil
- Ticker
- MGU
Geometry
- Grade
- 719
- Grade Unit
- ppm
- Intercept
- 2 m
- From
- 16 m
- To
- 18 m
- Hole Depth
- 18 m
- Intercept Depth
- 14 m
Classification
- Deposit Type
- other
- Program
- mixed
- Sample Type
- drill
- Group ID
- PIR-AH-0447:16-18
- Mining Method
- open_pit
Location
- Easting
- 713340.63
- Northing
- 8093175.07
- CRS
- SIRGAS 2000 / UTM Zone 22S
- Elevation
- 831.7 m
- Dip
- -90 °
- Loc. Confidence
- high
- Loc. Source
- document
QA/QC
- Laboratory
- ALS
- QA/QC Disclosed
- Yes
- Lab Certified
- Yes
- QP Signed
- Yes
- QA/QC Methods
- standards, blanks, duplicates, umpire
Deleterious
- Deleterious Flag
- No
Metal Equivalent
- Assumptions Disclosed
- No
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-10-11T00:00:00.000Z
Reasoning: This sub-interval of 2m at 719 ppm D-TREO represents a high grade for rare earths, significantly exceeding the project average and indicating a strong zone within the broader intercept.
Positive factors
- High grade for rare earths
- Significantly above project average grade
- High-grade sub-interval
- JORC compliant reporting
- QP signed off
- Detailed QA/QC disclosed
Negative factors
- Apparent width only
- D-prefix grades are screening indicators, not metallurgical recovery
- No umpire laboratory program reported
Evidence · table
“719”
Context: 2 m from 16 m
Tags used in scoring
QA/QC Disclosedpositive
Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).
Why it applies: qaqc_disclosed is true
Cut-off Undisclosednegative
High-grade interval reported without stating the cut-off grade used for compositing.
Why it applies: no cutoff_grade was stated
Infill Drillingneutral
Confirmatory drilling to raise resource confidence, not new discovery.
Why it applies: drill_program_type is "mixed"
PIR-AH-0491Piracanjuba North · rare_earthsGrade: 612Grade Unit: ppmIntercept: 5 mView all detailsHide details
Identity
- Hole ID
- PIR-AH-0491
- Project
- Piracanjuba North
- Commodity
- rare_earths
- Region
- brazil
- Reported Region
- brazil
- Ticker
- MGU
Geometry
- Grade
- 612
- Grade Unit
- ppm
- Intercept
- 5 m
- From
- 4 m
- To
- 9 m
- Hole Depth
- 9 m
- Intercept Depth
- 4 m
Classification
- Deposit Type
- other
- Program
- mixed
- Sample Type
- drill
- Group ID
- PIR-AH-0491:4-9
- Mining Method
- open_pit
Location
- Easting
- 715001.52
- Northing
- 8094321.15
- CRS
- SIRGAS 2000 / UTM Zone 22S
- Elevation
- 796.18 m
- Dip
- -90 °
- Loc. Confidence
- high
- Loc. Source
- document
QA/QC
- Laboratory
- ALS
- QA/QC Disclosed
- Yes
- Lab Certified
- Yes
- QP Signed
- Yes
- QA/QC Methods
- standards, blanks, duplicates, umpire
Deleterious
- Deleterious Flag
- No
Metal Equivalent
- Assumptions Disclosed
- No
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-10-11T00:00:00.000Z
Reasoning: This intercept of 5m at 612 ppm D-TREO is significantly above the project average grade of 503 ppm, indicating strong mineralization, and the hole ends in mineralization, suggesting potential for extension.
Positive factors
- High grade for rare earths
- Above project average grade
- Good intercept length
- Hole ends in mineralization
- JORC compliant reporting
- QP signed off
- Detailed QA/QC disclosed
Negative factors
- Apparent width only
- D-prefix grades are screening indicators, not metallurgical recovery
- No umpire laboratory program reported
Evidence · table
“612”
Context: 5 m from 4 m to EOH
Tags used in scoring
QA/QC Disclosedpositive
Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).
Why it applies: qaqc_disclosed is true
Cut-off Undisclosednegative
High-grade interval reported without stating the cut-off grade used for compositing.
Why it applies: no cutoff_grade was stated
Infill Drillingneutral
Confirmatory drilling to raise resource confidence, not new discovery.
Why it applies: drill_program_type is "mixed"
PIR-AH-0491Piracanjuba North · rare_earthsGrade: 717Grade Unit: ppmIntercept: 2 mView all detailsHide details
Identity
- Hole ID
- PIR-AH-0491
- Project
- Piracanjuba North
- Commodity
- rare_earths
- Region
- brazil
- Reported Region
- brazil
- Ticker
- MGU
Geometry
- Grade
- 717
- Grade Unit
- ppm
- Intercept
- 2 m
- From
- 4 m
- To
- 6 m
- Hole Depth
- 9 m
- Intercept Depth
- 4 m
Classification
- Deposit Type
- other
- Program
- mixed
- Sample Type
- drill
- Group ID
- PIR-AH-0491:4-6
- Mining Method
- open_pit
Location
- Easting
- 715001.52
- Northing
- 8094321.15
- CRS
- SIRGAS 2000 / UTM Zone 22S
- Elevation
- 796.18 m
- Dip
- -90 °
- Loc. Confidence
- high
- Loc. Source
- document
QA/QC
- Laboratory
- ALS
- QA/QC Disclosed
- Yes
- Lab Certified
- Yes
- QP Signed
- Yes
- QA/QC Methods
- standards, blanks, duplicates, umpire
Deleterious
- Deleterious Flag
- No
Metal Equivalent
- Assumptions Disclosed
- No
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-10-11T00:00:00.000Z
Reasoning: This sub-interval of 2m at 717 ppm D-TREO represents a high grade for rare earths, significantly exceeding the project average and indicating a strong zone within the broader intercept.
Positive factors
- High grade for rare earths
- Significantly above project average grade
- High-grade sub-interval
- JORC compliant reporting
- QP signed off
- Detailed QA/QC disclosed
Negative factors
- Apparent width only
- D-prefix grades are screening indicators, not metallurgical recovery
- No umpire laboratory program reported
Evidence · table
“717”
Context: 2 m from 4 m
Tags used in scoring
QA/QC Disclosedpositive
Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).
Why it applies: qaqc_disclosed is true
Cut-off Undisclosednegative
High-grade interval reported without stating the cut-off grade used for compositing.
Why it applies: no cutoff_grade was stated
Infill Drillingneutral
Confirmatory drilling to raise resource confidence, not new discovery.
Why it applies: drill_program_type is "mixed"
PIR-AH-0411Piracanjuba North · rare_earthsGrade: 630Grade Unit: ppmIntercept: 2 mView all detailsHide details
Identity
- Hole ID
- PIR-AH-0411
- Project
- Piracanjuba North
- Commodity
- rare_earths
- Region
- brazil
- Reported Region
- brazil
- Ticker
- MGU
Geometry
- Grade
- 630
- Grade Unit
- ppm
- Intercept
- 2 m
- From
- 8 m
- To
- 10 m
- Hole Depth
- 15 m
- Intercept Depth
- 8 m
Classification
- Deposit Type
- other
- Program
- mixed
- Sample Type
- drill
- Group ID
- PIR-AH-0411:8-10
- Mining Method
- open_pit
Location
- Easting
- 714524.65
- Northing
- 8096102.12
- CRS
- SIRGAS 2000 / UTM Zone 22S
- Elevation
- 754.33 m
- Dip
- -90 °
- Loc. Confidence
- high
- Loc. Source
- document
QA/QC
- Laboratory
- ALS
- QA/QC Disclosed
- Yes
- Lab Certified
- Yes
- QP Signed
- Yes
- QA/QC Methods
- standards, blanks, duplicates, umpire
Deleterious
- Deleterious Flag
- No
Metal Equivalent
- Assumptions Disclosed
- No
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-10-11T00:00:00.000Z
Reasoning: This intercept of 2m at 630 ppm D-TREO is significantly above the project average grade of 503 ppm, indicating a strong high-grade zone.
Positive factors
- High grade for rare earths
- Above project average grade
- JORC compliant reporting
- QP signed off
- Detailed QA/QC disclosed
Negative factors
- Apparent width only
- D-prefix grades are screening indicators, not metallurgical recovery
- No umpire laboratory program reported
Evidence · table
“630”
Context: 2 m from 8 m
Tags used in scoring
QA/QC Disclosedpositive
Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).
Why it applies: qaqc_disclosed is true
Cut-off Undisclosednegative
High-grade interval reported without stating the cut-off grade used for compositing.
Why it applies: no cutoff_grade was stated
Infill Drillingneutral
Confirmatory drilling to raise resource confidence, not new discovery.
Why it applies: drill_program_type is "mixed"
PIR-AH-0494Piracanjuba North · rare_earthsGrade: 461Grade Unit: ppmIntercept: 6 mView all detailsHide details
Identity
- Hole ID
- PIR-AH-0494
- Project
- Piracanjuba North
- Commodity
- rare_earths
- Region
- brazil
- Reported Region
- brazil
- Ticker
- MGU
Geometry
- Grade
- 461
- Grade Unit
- ppm
- Intercept
- 6 m
- From
- 6 m
- To
- 12 m
- Hole Depth
- 12 m
- Intercept Depth
- 6 m
Classification
- Deposit Type
- other
- Program
- mixed
- Sample Type
- drill
- Group ID
- PIR-AH-0494:6-12
- Mining Method
- open_pit
Location
- Easting
- 715020.6
- Northing
- 8093877.92
- CRS
- SIRGAS 2000 / UTM Zone 22S
- Elevation
- 812.79 m
- Dip
- -90 °
- Loc. Confidence
- high
- Loc. Source
- document
QA/QC
- Laboratory
- ALS
- QA/QC Disclosed
- Yes
- Lab Certified
- Yes
- QP Signed
- Yes
- QA/QC Methods
- standards, blanks, duplicates, umpire
Deleterious
- Deleterious Flag
- No
Metal Equivalent
- Assumptions Disclosed
- No
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-10-11T00:00:00.000Z
Reasoning: This intercept of 6m at 461 ppm D-TREO, while slightly below the project average, represents a good grade and length, with a strong grade-thickness product, and the hole ends in mineralization.
Positive factors
- Good grade for rare earths
- Good intercept length
- Hole ends in mineralization
- High grade-thickness product (2766 ppm*m)
- JORC compliant reporting
- QP signed off
- Detailed QA/QC disclosed
Negative factors
- Apparent width only
- D-prefix grades are screening indicators, not metallurgical recovery
- No umpire laboratory program reported
Evidence · table
“461”
Context: 6 m from 6 m to EOH
Tags used in scoring
QA/QC Disclosedpositive
Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).
Why it applies: qaqc_disclosed is true
Cut-off Undisclosednegative
High-grade interval reported without stating the cut-off grade used for compositing.
Why it applies: no cutoff_grade was stated
Infill Drillingneutral
Confirmatory drilling to raise resource confidence, not new discovery.
Why it applies: drill_program_type is "mixed"
PIR-AH-0494Piracanjuba North · rare_earthsGrade: 584Grade Unit: ppmIntercept: 2 mView all detailsHide details
Identity
- Hole ID
- PIR-AH-0494
- Project
- Piracanjuba North
- Commodity
- rare_earths
- Region
- brazil
- Reported Region
- brazil
- Ticker
- MGU
Geometry
- Grade
- 584
- Grade Unit
- ppm
- Intercept
- 2 m
- From
- 8 m
- To
- 10 m
- Hole Depth
- 12 m
- Intercept Depth
- 6 m
Classification
- Deposit Type
- other
- Program
- mixed
- Sample Type
- drill
- Group ID
- PIR-AH-0494:8-10
- Mining Method
- open_pit
Location
- Easting
- 715020.6
- Northing
- 8093877.92
- CRS
- SIRGAS 2000 / UTM Zone 22S
- Elevation
- 812.79 m
- Dip
- -90 °
- Loc. Confidence
- high
- Loc. Source
- document
QA/QC
- Laboratory
- ALS
- QA/QC Disclosed
- Yes
- Lab Certified
- Yes
- QP Signed
- Yes
- QA/QC Methods
- standards, blanks, duplicates, umpire
Deleterious
- Deleterious Flag
- No
Metal Equivalent
- Assumptions Disclosed
- No
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-10-11T00:00:00.000Z
Reasoning: This sub-interval of 2m at 584 ppm D-TREO is above the project average grade, indicating a strong zone within the broader intercept.
Positive factors
- High grade for rare earths
- Above project average grade
- High-grade sub-interval
- JORC compliant reporting
- QP signed off
- Detailed QA/QC disclosed
Negative factors
- Apparent width only
- D-prefix grades are screening indicators, not metallurgical recovery
- No umpire laboratory program reported
Evidence · table
“584”
Context: 2 m from 8 m
Tags used in scoring
QA/QC Disclosedpositive
Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).
Why it applies: qaqc_disclosed is true
Cut-off Undisclosednegative
High-grade interval reported without stating the cut-off grade used for compositing.
Why it applies: no cutoff_grade was stated
Infill Drillingneutral
Confirmatory drilling to raise resource confidence, not new discovery.
Why it applies: drill_program_type is "mixed"
PIR-AH-0502Piracanjuba North · rare_earthsGrade: 499Grade Unit: ppmIntercept: 4 mView all detailsHide details
Identity
- Hole ID
- PIR-AH-0502
- Project
- Piracanjuba North
- Commodity
- rare_earths
- Region
- brazil
- Reported Region
- brazil
- Ticker
- MGU
Geometry
- Grade
- 499
- Grade Unit
- ppm
- Intercept
- 4 m
- From
- 6 m
- To
- 10 m
- Hole Depth
- 15 m
- Intercept Depth
- 6 m
Classification
- Deposit Type
- other
- Program
- mixed
- Sample Type
- drill
- Group ID
- PIR-AH-0502:6-10
- Mining Method
- open_pit
Location
- Easting
- 715928.86
- Northing
- 8094099.59
- CRS
- SIRGAS 2000 / UTM Zone 22S
- Elevation
- 805 m
- Dip
- -90 °
- Loc. Confidence
- high
- Loc. Source
- document
QA/QC
- Laboratory
- ALS
- QA/QC Disclosed
- Yes
- Lab Certified
- Yes
- QP Signed
- Yes
- QA/QC Methods
- standards, blanks, duplicates, umpire
Deleterious
- Deleterious Flag
- No
Metal Equivalent
- Assumptions Disclosed
- No
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-10-11T00:00:00.000Z
Reasoning: This intercept of 4m at 499 ppm D-TREO represents a good grade and length, contributing positively to the overall mineralization.
Positive factors
- Good grade for rare earths
- Good intercept length
- JORC compliant reporting
- QP signed off
- Detailed QA/QC disclosed
Negative factors
- Apparent width only
- D-prefix grades are screening indicators, not metallurgical recovery
- No umpire laboratory program reported
Evidence · table
“499”
Context: 4 m from 6 m
Tags used in scoring
QA/QC Disclosedpositive
Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).
Why it applies: qaqc_disclosed is true
Cut-off Undisclosednegative
High-grade interval reported without stating the cut-off grade used for compositing.
Why it applies: no cutoff_grade was stated
Infill Drillingneutral
Confirmatory drilling to raise resource confidence, not new discovery.
Why it applies: drill_program_type is "mixed"
PIR-AH-0502Piracanjuba North · rare_earthsGrade: 579Grade Unit: ppmIntercept: 2 mView all detailsHide details
Identity
- Hole ID
- PIR-AH-0502
- Project
- Piracanjuba North
- Commodity
- rare_earths
- Region
- brazil
- Reported Region
- brazil
- Ticker
- MGU
Geometry
- Grade
- 579
- Grade Unit
- ppm
- Intercept
- 2 m
- From
- 8 m
- To
- 10 m
- Hole Depth
- 15 m
- Intercept Depth
- 6 m
Classification
- Deposit Type
- other
- Program
- mixed
- Sample Type
- drill
- Group ID
- PIR-AH-0502:8-10
- Mining Method
- open_pit
Location
- Easting
- 715928.86
- Northing
- 8094099.59
- CRS
- SIRGAS 2000 / UTM Zone 22S
- Elevation
- 805 m
- Dip
- -90 °
- Loc. Confidence
- high
- Loc. Source
- document
QA/QC
- Laboratory
- ALS
- QA/QC Disclosed
- Yes
- Lab Certified
- Yes
- QP Signed
- Yes
- QA/QC Methods
- standards, blanks, duplicates, umpire
Deleterious
- Deleterious Flag
- No
Metal Equivalent
- Assumptions Disclosed
- No
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-10-11T00:00:00.000Z
Reasoning: This sub-interval of 2m at 579 ppm D-TREO is above the project average grade, indicating a strong zone within the broader intercept.
Positive factors
- High grade for rare earths
- Above project average grade
- High-grade sub-interval
- JORC compliant reporting
- QP signed off
- Detailed QA/QC disclosed
Negative factors
- Apparent width only
- D-prefix grades are screening indicators, not metallurgical recovery
- No umpire laboratory program reported
Evidence · table
“579”
Context: 2 m from 8 m
Tags used in scoring
QA/QC Disclosedpositive
Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).
Why it applies: qaqc_disclosed is true
Cut-off Undisclosednegative
High-grade interval reported without stating the cut-off grade used for compositing.
Why it applies: no cutoff_grade was stated
Infill Drillingneutral
Confirmatory drilling to raise resource confidence, not new discovery.
Why it applies: drill_program_type is "mixed"
PIR-AH-0430Piracanjuba North · rare_earthsGrade: 514Grade Unit: ppmIntercept: 4 mView all detailsHide details
Identity
- Hole ID
- PIR-AH-0430
- Project
- Piracanjuba North
- Commodity
- rare_earths
- Region
- brazil
- Reported Region
- brazil
- Ticker
- MGU
Geometry
- Grade
- 514
- Grade Unit
- ppm
- Intercept
- 4 m
- From
- 6 m
- To
- 10 m
- Hole Depth
- 15 m
- Intercept Depth
- 6 m
Classification
- Deposit Type
- other
- Program
- mixed
- Sample Type
- drill
- Group ID
- PIR-AH-0430:6-10
- Mining Method
- open_pit
Location
- Easting
- 715918.85
- Northing
- 8094905.48
- CRS
- SIRGAS 2000 / UTM Zone 22S
- Elevation
- 782.84 m
- Dip
- -90 °
- Loc. Confidence
- high
- Loc. Source
- document
QA/QC
- Laboratory
- ALS
- QA/QC Disclosed
- Yes
- Lab Certified
- Yes
- QP Signed
- Yes
- QA/QC Methods
- standards, blanks, duplicates, umpire
Deleterious
- Deleterious Flag
- No
Metal Equivalent
- Assumptions Disclosed
- No
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-10-11T00:00:00.000Z
Reasoning: This intercept of 4m at 514 ppm D-TREO is above the project average grade, indicating strong mineralization.
Positive factors
- High grade for rare earths
- Above project average grade
- Good intercept length
- JORC compliant reporting
- QP signed off
- Detailed QA/QC disclosed
Negative factors
- Apparent width only
- D-prefix grades are screening indicators, not metallurgical recovery
- No umpire laboratory program reported
Evidence · table
“514”
Context: 4 m from 6 m
Tags used in scoring
QA/QC Disclosedpositive
Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).
Why it applies: qaqc_disclosed is true
Cut-off Undisclosednegative
High-grade interval reported without stating the cut-off grade used for compositing.
Why it applies: no cutoff_grade was stated
Infill Drillingneutral
Confirmatory drilling to raise resource confidence, not new discovery.
Why it applies: drill_program_type is "mixed"
PIR-AH-0430Piracanjuba North · rare_earthsGrade: 535Grade Unit: ppmIntercept: 2 mView all detailsHide details
Identity
- Hole ID
- PIR-AH-0430
- Project
- Piracanjuba North
- Commodity
- rare_earths
- Region
- brazil
- Reported Region
- brazil
- Ticker
- MGU
Geometry
- Grade
- 535
- Grade Unit
- ppm
- Intercept
- 2 m
- From
- 6 m
- To
- 8 m
- Hole Depth
- 15 m
- Intercept Depth
- 6 m
Classification
- Deposit Type
- other
- Program
- mixed
- Sample Type
- drill
- Group ID
- PIR-AH-0430:6-8
- Mining Method
- open_pit
Location
- Easting
- 715918.85
- Northing
- 8094905.48
- CRS
- SIRGAS 2000 / UTM Zone 22S
- Elevation
- 782.84 m
- Dip
- -90 °
- Loc. Confidence
- high
- Loc. Source
- document
QA/QC
- Laboratory
- ALS
- QA/QC Disclosed
- Yes
- Lab Certified
- Yes
- QP Signed
- Yes
- QA/QC Methods
- standards, blanks, duplicates, umpire
Deleterious
- Deleterious Flag
- No
Metal Equivalent
- Assumptions Disclosed
- No
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-10-11T00:00:00.000Z
Reasoning: This sub-interval of 2m at 535 ppm D-TREO is above the project average grade, indicating a strong zone within the broader intercept.
Positive factors
- High grade for rare earths
- Above project average grade
- High-grade sub-interval
- JORC compliant reporting
- QP signed off
- Detailed QA/QC disclosed
Negative factors
- Apparent width only
- D-prefix grades are screening indicators, not metallurgical recovery
- No umpire laboratory program reported
Evidence · table
“535”
Context: 2 m from 6 m
Tags used in scoring
QA/QC Disclosedpositive
Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).
Why it applies: qaqc_disclosed is true
Cut-off Undisclosednegative
High-grade interval reported without stating the cut-off grade used for compositing.
Why it applies: no cutoff_grade was stated
Infill Drillingneutral
Confirmatory drilling to raise resource confidence, not new discovery.
Why it applies: drill_program_type is "mixed"
PIR-AH-0501Piracanjuba North · rare_earthsGrade: 428Grade Unit: ppmIntercept: 8 mView all detailsHide details
Identity
- Hole ID
- PIR-AH-0501
- Project
- Piracanjuba North
- Commodity
- rare_earths
- Region
- brazil
- Reported Region
- brazil
- Ticker
- MGU
Geometry
- Grade
- 428
- Grade Unit
- ppm
- Intercept
- 8 m
- From
- 6 m
- To
- 14 m
- Hole Depth
- 15 m
- Intercept Depth
- 6 m
Classification
- Deposit Type
- other
- Program
- mixed
- Sample Type
- drill
- Group ID
- PIR-AH-0501:6-14
- Mining Method
- open_pit
Location
- Easting
- 716137.09
- Northing
- 8094302.03
- CRS
- SIRGAS 2000 / UTM Zone 22S
- Elevation
- 791.65 m
- Dip
- -90 °
- Loc. Confidence
- high
- Loc. Source
- document
QA/QC
- Laboratory
- ALS
- QA/QC Disclosed
- Yes
- Lab Certified
- Yes
- QP Signed
- Yes
- QA/QC Methods
- standards, blanks, duplicates, umpire
Deleterious
- Deleterious Flag
- No
Metal Equivalent
- Assumptions Disclosed
- No
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-10-11T00:00:00.000Z
Reasoning: This intercept of 8m at 428 ppm D-TREO, while slightly below the project average, represents an excellent length and a very strong grade-thickness product, indicating significant mineralization.
Positive factors
- Good grade for rare earths
- Excellent intercept length
- High grade-thickness product (3424 ppm*m)
- JORC compliant reporting
- QP signed off
- Detailed QA/QC disclosed
Negative factors
- Apparent width only
- D-prefix grades are screening indicators, not metallurgical recovery
- No umpire laboratory program reported
Evidence · table
“428”
Context: 8 m from 6 m
Tags used in scoring
QA/QC Disclosedpositive
Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).
Why it applies: qaqc_disclosed is true
Cut-off Undisclosednegative
High-grade interval reported without stating the cut-off grade used for compositing.
Why it applies: no cutoff_grade was stated
Infill Drillingneutral
Confirmatory drilling to raise resource confidence, not new discovery.
Why it applies: drill_program_type is "mixed"
PIR-AH-0501Piracanjuba North · rare_earthsGrade: 533Grade Unit: ppmIntercept: 2 mView all detailsHide details
Identity
- Hole ID
- PIR-AH-0501
- Project
- Piracanjuba North
- Commodity
- rare_earths
- Region
- brazil
- Reported Region
- brazil
- Ticker
- MGU
Geometry
- Grade
- 533
- Grade Unit
- ppm
- Intercept
- 2 m
- From
- 10 m
- To
- 12 m
- Hole Depth
- 15 m
- Intercept Depth
- 6 m
Classification
- Deposit Type
- other
- Program
- mixed
- Sample Type
- drill
- Group ID
- PIR-AH-0501:10-12
- Mining Method
- open_pit
Location
- Easting
- 716137.09
- Northing
- 8094302.03
- CRS
- SIRGAS 2000 / UTM Zone 22S
- Elevation
- 791.65 m
- Dip
- -90 °
- Loc. Confidence
- high
- Loc. Source
- document
QA/QC
- Laboratory
- ALS
- QA/QC Disclosed
- Yes
- Lab Certified
- Yes
- QP Signed
- Yes
- QA/QC Methods
- standards, blanks, duplicates, umpire
Deleterious
- Deleterious Flag
- No
Metal Equivalent
- Assumptions Disclosed
- No
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-10-11T00:00:00.000Z
Reasoning: This sub-interval of 2m at 533 ppm D-TREO is above the project average grade, indicating a strong zone within the broader intercept.
Positive factors
- High grade for rare earths
- Above project average grade
- High-grade sub-interval
- JORC compliant reporting
- QP signed off
- Detailed QA/QC disclosed
Negative factors
- Apparent width only
- D-prefix grades are screening indicators, not metallurgical recovery
- No umpire laboratory program reported
Evidence · table
“533”
Context: 2 m from 10 m
Tags used in scoring
QA/QC Disclosedpositive
Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).
Why it applies: qaqc_disclosed is true
Cut-off Undisclosednegative
High-grade interval reported without stating the cut-off grade used for compositing.
Why it applies: no cutoff_grade was stated
Infill Drillingneutral
Confirmatory drilling to raise resource confidence, not new discovery.
Why it applies: drill_program_type is "mixed"
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.