AT4: Antimony and Silver Results Support Mine-to-Metal Strategy
Original announcement by asx on
- Company
- AMERICAN TUNGSTEN & ANTIMONY LTD
- Ticker
- AT4
- Exchange
- ASX
- Region
- Unavailable
- Primary commodity
- Antimony
- Secondary commodities
- Silver
- Document categories
- Drill results, Metallurgy
- Extracted
- 2026-10-14 22:37:46 UTC
Analysis by Minestarters Atlas
Atlas analysis published:
Minestarters Atlas analysis
Summary
American Tungsten & Antimony Ltd (AT4) announced high-grade antimony drill results from its Antimony Canyon Project in Utah and bonanza silver rock chip results from the White Spar Project in Arizona. The drilling at Little Emma confirmed a second high-grade antimony pod, including an intercept of 0.36m at 68.1% Sb. The company also reported silver grades up to 665 g/t Ag from White Spar rock chip samples, prompting an assessment for a dedicated silver recovery circuit at its Del Sol Refinery, which previously produced 99.8% pure antimony ingot.
Reasoning: The announcement reports very high-grade antimony drill results and bonanza silver rock chip results, which significantly strengthen the company's mine-to-metal strategy and open new revenue potential. While drilling QA/QC is good, rock chip sampling has limitations and true widths are not confirmed, and deleterious elements are present.
Positive factors
- High-grade antimony intercept (68.1% Sb)
- Bonanza silver grades (665 g/t Ag)
- Confirmation of mine-to-metal strategy viability
- Potential for new silver revenue stream
- QA/QC disclosed for drilling
- Compositing parameters disclosed for drilling
- Step-out drilling extends mineralization
Negative factors
- True widths not confirmed for drill intercepts
- Rock chip samples are selective and not representative
- QA/QC limitations for rock chip samples (no company CRMs/blanks/duplicates, unmeasured sampling precision)
- Deleterious elements (As, Hg, Tl, Mo, Pb, Ba, Sr, Cd) present in both projects
- Metallurgical results are historical, not new testwork
Low confidence — this extraction should be reviewed alongside the original source.
Facts used in scoring: 26
Classification and evidence
Bonanza Interceptpositive
Exceptionally high-grade zone, well above the deposit-type norm.
Why it applies: The intercept of 0.36m at 68.1% Sb is exceptionally high-grade for antimony.
Evidence · table
“0.36m @ 68.10% Sb”
Context: 0.36
Apparent Width Onlynegative
Interval given as downhole width with no true width or drill orientation — apparent width may overstate true thickness.
Why it applies: Intercepts are reported as down-hole lengths and true widths are not confirmed for the drill results.
Evidence · text
“Intercepts are reported as down-hole lengths. True widths not confirmed.”
QA/QC Disclosedpositive
Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).
Why it applies: The release states that certified reference standards and blanks were inserted at a 1:20 rate for the Antimony Canyon drilling.
Evidence · text
“QA/QC: certified reference standards and blanks at 1:20 rate.”
Compositing Transparentpositive
Cut-off grade and internal dilution rules are clearly stated for reported intervals.
Why it applies: The drill intercepts are reported at a nominal cut-off of 0.1% Sb with a maximum of approximately 3m internal dilution.
Evidence · text
“All intercepts reported at a nominal cut-off of 0.1% Sb with a maximum of approximately 3m internal dilution.”
Step-Out Extensionpositive
Mineralization extended beyond the previously known limit.
Why it applies: Drilling at Little Emma has advanced the geological understanding of the Antimony Canyon stibnite system extending to the northeast of the historical open pit workings.
Evidence · text
“Drilling at Little Emma has advanced the geological understanding of the Antimony Canyon stibnite system extending to the northeast of the historical open pit workings”
No QA/QC Disclosurenegative
Release does not disclose QA/QC — lab certification, CP/QP sign-off and assay protocols cannot be checked from this document.
Why it applies: For White Spar rock chip samples, no Company certified reference material, blank or duplicate was submitted, and sampling precision is unmeasured.
Evidence · text
“LIMITATION: all quality control in this batch was laboratory-inserted; no Company certified reference material, blank or duplicate was submitted within the sample stream. Neither laboratory standard certifies Sb or Ag at the levels reported. No field duplicates were submitted and sampling precision is unmeasured.”
Deleterious Elements Presentnegative
Penalty elements (arsenic, antimony, etc.) or refractory concerns noted in the release.
Why it applies: Antimony Canyon samples show elevated arsenic, mercury, thallium, and molybdenum. White Spar samples show elevated lead, barium, strontium, mercury, and cadmium.
Evidence · text
“Pathfinder element signatures flanking the pod record elevated arsenic (1,618 ppm), mercury (11.7 ppm), thallium (100 ppm laboratory upper detection limit), and molybdenum (53.8 ppm)”
Pilot Scale Completepositive
Pilot or demonstration plant testing completed under continuous operation.
Why it applies: Del Sol recently produced 99.8% purity antimony ingot from White Spar material, demonstrating the processing pathway.
Evidence · text
“Del Sol recently producing 99.8% purity antimony ingot from White Spar material, exceeding Regulus II specifications.”
Stale Data Re-releasenegative
Historical results re-announced with no new assays or reinterpretation — low genuine novelty.
Why it applies: Previously reported high-grade intercepts at Antimony Canyon (ACO2622026 and ACP26DD010) are re-stated for context.
Evidence · text
“Latest drilling builds on previously reported high-grade intercepts at Antimony Canyon, including: o 10.37m @ 3.98% Sb from 3.35m including 4.57m @ 8.56% Sb from 6.71m (ACO2622026)2 o 11.03m @ 3.1% Sb from 25.91m including 2.62m @12.54% Sb from 29.2m (ACP26DD010)3”
Single Domain Onlynegative
Testing limited to one composite or domain — representativeness not established.
Why it applies: only one composite was tested
Extracted facts
Stored fact records: 26. Some facts used in scoring do not have a stored record.
Drill Results (25)
ACP26DD023Antimony Canyon · antimonyGrade: 18.23Grade Unit: %Intercept: 1.49 mHistorical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Hole ID
- ACP26DD023
- Project
- Antimony Canyon
- Commodity
- antimony
- Region
- usa_ut
- Reported Region
- usa_ut
- Ticker
- AT4
Geometry
- Grade
- 18.23
- Grade Unit
- %
- Intercept
- 1.49 m
- From
- 28.35 m
- To
- 29.84 m
- Hole Depth
- 54.86 m
- Intercept Depth
- 28.35 m
Classification
- Deposit Type
- other
- Program
- exploration
- Sample Type
- drill
- Group ID
- ACP26DD023:28.35-29.84
- Mining Method
- underground
Location
- Easting
- 420819.839
- Northing
- 4216636.241
- CRS
- WGS84, UTM Zone 12N
- Loc. Confidence
- high
- Loc. Source
- document
QA/QC
- Laboratory
- American Assay Laboratories, Sparks, Nevada
- QA/QC Disclosed
- Yes
- QP Signed
- Yes
- QA/QC Methods
- standards, blanks
Deleterious
- Deleterious Flag
- Yes
- Deleterious Elements
- arsenic, mercury, thallium, molybdenum
Compositing
- Cutoff Grade
- 0.1
- Cutoff Unit
- % Sb
- Dilution Disclosed
- Yes
- Max Dilution
- 3 m
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Interp. Status
- scored
- Historical
- Yes
Dates
- Event date
- 2026-10-14T00:00:00.000Z
Reasoning: This is a very high-grade antimony intercept from new drilling, contributing to the understanding of the deposit, though true width is not confirmed and deleterious elements are noted.
Positive factors
- High-grade antimony intercept
- Step-out extension
- QA/QC disclosed
- Compositing transparent
Negative factors
- Apparent width only
- Deleterious elements present
Evidence · table
“18.23”
Context: 1.49
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
Compositing Transparentpositive
Cut-off grade and internal dilution rules are clearly stated for reported intervals.
Why it applies: cutoff_grade and internal dilution are both stated
Deleterious Elements Presentnegative
Penalty elements (arsenic, antimony, etc.) or refractory concerns noted in the release.
Why it applies: deleterious_flag is true
ACP26DD023Antimony Canyon · antimonyGrade: 33.95Grade Unit: %Intercept: 0.79 mView all detailsHide details
Identity
- Hole ID
- ACP26DD023
- Project
- Antimony Canyon
- Commodity
- antimony
- Region
- usa_ut
- Reported Region
- usa_ut
- Ticker
- AT4
Geometry
- Grade
- 33.95
- Grade Unit
- %
- Intercept
- 0.79 m
- From
- 29.05 m
- To
- 29.84 m
- Hole Depth
- 54.86 m
- Intercept Depth
- 28.35 m
Classification
- Deposit Type
- other
- Program
- exploration
- Sample Type
- drill
- Group ID
- ACP26DD023:29.05-29.84
- Mining Method
- underground
Location
- Easting
- 420819.839
- Northing
- 4216636.241
- CRS
- WGS84, UTM Zone 12N
- Loc. Confidence
- high
- Loc. Source
- document
QA/QC
- Laboratory
- American Assay Laboratories, Sparks, Nevada
- QA/QC Disclosed
- Yes
- QP Signed
- Yes
- QA/QC Methods
- standards, blanks
Deleterious
- Deleterious Flag
- Yes
- Deleterious Elements
- arsenic, mercury, thallium, molybdenum
Compositing
- Cutoff Grade
- 0.1
- Cutoff Unit
- % Sb
- Dilution Disclosed
- Yes
- Max Dilution
- 3 m
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-10-14T00:00:00.000Z
Reasoning: This is an exceptionally high-grade antimony sub-interval, confirming a significant mineralized pod, though true width is not confirmed and deleterious elements are noted.
Positive factors
- Bonanza intercept
- High-grade antimony intercept
- Step-out extension
- QA/QC disclosed
- Compositing transparent
Negative factors
- Apparent width only
- Deleterious elements present
Evidence · table
“33.95”
Context: 0.79
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
Compositing Transparentpositive
Cut-off grade and internal dilution rules are clearly stated for reported intervals.
Why it applies: cutoff_grade and internal dilution are both stated
Deleterious Elements Presentnegative
Penalty elements (arsenic, antimony, etc.) or refractory concerns noted in the release.
Why it applies: deleterious_flag is true
ACP26DD023Antimony Canyon · antimonyGrade: 68.1Grade Unit: %Intercept: 0.36 mView all detailsHide details
Identity
- Hole ID
- ACP26DD023
- Project
- Antimony Canyon
- Commodity
- antimony
- Region
- usa_ut
- Reported Region
- usa_ut
- Ticker
- AT4
Geometry
- Grade
- 68.1
- Grade Unit
- %
- Intercept
- 0.36 m
- From
- 29.05 m
- To
- 29.41 m
- Hole Depth
- 54.86 m
- Intercept Depth
- 28.35 m
Classification
- Deposit Type
- other
- Program
- exploration
- Sample Type
- drill
- Group ID
- ACP26DD023:29.05-29.41
- Mining Method
- underground
Location
- Easting
- 420819.839
- Northing
- 4216636.241
- CRS
- WGS84, UTM Zone 12N
- Loc. Confidence
- high
- Loc. Source
- document
QA/QC
- Laboratory
- American Assay Laboratories, Sparks, Nevada
- QA/QC Disclosed
- Yes
- QP Signed
- Yes
- QA/QC Methods
- standards, blanks
Deleterious
- Deleterious Flag
- Yes
- Deleterious Elements
- arsenic, mercury, thallium, molybdenum
Compositing
- Cutoff Grade
- 0.1
- Cutoff Unit
- % Sb
- Dilution Disclosed
- Yes
- Max Dilution
- 3 m
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-10-14T00:00:00.000Z
Reasoning: This is an exceptionally high-grade antimony sub-interval, representing near-pure massive stibnite and confirming a significant mineralized pod, though true width is not confirmed and deleterious elements are noted.
Positive factors
- Bonanza intercept
- High-grade antimony intercept
- Step-out extension
- QA/QC disclosed
- Compositing transparent
Negative factors
- Apparent width only
- Deleterious elements present
Evidence · table
“68.10”
Context: 0.36
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
Compositing Transparentpositive
Cut-off grade and internal dilution rules are clearly stated for reported intervals.
Why it applies: cutoff_grade and internal dilution are both stated
Deleterious Elements Presentnegative
Penalty elements (arsenic, antimony, etc.) or refractory concerns noted in the release.
Why it applies: deleterious_flag is true
ACP26DD027Antimony Canyon · antimonyGrade: 0.63Grade Unit: %Intercept: 7.32 mView all detailsHide details
Identity
- Hole ID
- ACP26DD027
- Project
- Antimony Canyon
- Commodity
- antimony
- Region
- usa_ut
- Reported Region
- usa_ut
- Ticker
- AT4
Geometry
- Grade
- 0.63
- Grade Unit
- %
- Intercept
- 7.32 m
- From
- 3.96 m
- To
- 11.28 m
- Hole Depth
- 54.86 m
- Intercept Depth
- 3.96 m
Classification
- Deposit Type
- other
- Program
- exploration
- Sample Type
- drill
- Group ID
- ACP26DD027:3.96-11.28
- Mining Method
- open_pit
Location
- Easting
- 420888.212
- Northing
- 4216804.353
- CRS
- WGS84, UTM Zone 12N
- Loc. Confidence
- high
- Loc. Source
- document
QA/QC
- Laboratory
- American Assay Laboratories, Sparks, Nevada
- QA/QC Disclosed
- Yes
- QP Signed
- Yes
- QA/QC Methods
- standards, blanks
Deleterious
- Deleterious Flag
- Yes
- Deleterious Elements
- arsenic, mercury, thallium, molybdenum
Compositing
- Cutoff Grade
- 0.1
- Cutoff Unit
- % Sb
- Dilution Disclosed
- Yes
- Max Dilution
- 3 m
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-10-14T00:00:00.000Z
Reasoning: This is a moderate-grade antimony intercept from new drilling, extending the mineralized system, though true width is not confirmed and deleterious elements are noted.
Positive factors
- Step-out extension
- QA/QC disclosed
- Compositing transparent
Negative factors
- Apparent width only
- Deleterious elements present
Evidence · table
“0.63”
Context: 7.32
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
Compositing Transparentpositive
Cut-off grade and internal dilution rules are clearly stated for reported intervals.
Why it applies: cutoff_grade and internal dilution are both stated
Deleterious Elements Presentnegative
Penalty elements (arsenic, antimony, etc.) or refractory concerns noted in the release.
Why it applies: deleterious_flag is true
ACP26DD027Antimony Canyon · antimonyGrade: 1.96Grade Unit: %Intercept: 1.22 mView all detailsHide details
Identity
- Hole ID
- ACP26DD027
- Project
- Antimony Canyon
- Commodity
- antimony
- Region
- usa_ut
- Reported Region
- usa_ut
- Ticker
- AT4
Geometry
- Grade
- 1.96
- Grade Unit
- %
- Intercept
- 1.22 m
- From
- 8.53 m
- To
- 9.75 m
- Hole Depth
- 54.86 m
- Intercept Depth
- 3.96 m
Classification
- Deposit Type
- other
- Program
- exploration
- Sample Type
- drill
- Group ID
- ACP26DD027:8.53-9.75
- Mining Method
- open_pit
Location
- Easting
- 420888.212
- Northing
- 4216804.353
- CRS
- WGS84, UTM Zone 12N
- Loc. Confidence
- high
- Loc. Source
- document
QA/QC
- Laboratory
- American Assay Laboratories, Sparks, Nevada
- QA/QC Disclosed
- Yes
- QP Signed
- Yes
- QA/QC Methods
- standards, blanks
Deleterious
- Deleterious Flag
- Yes
- Deleterious Elements
- arsenic, mercury, thallium, molybdenum
Compositing
- Cutoff Grade
- 0.1
- Cutoff Unit
- % Sb
- Dilution Disclosed
- Yes
- Max Dilution
- 3 m
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-10-14T00:00:00.000Z
Reasoning: This is a high-grade antimony sub-interval from new drilling, extending the mineralized system, though true width is not confirmed and deleterious elements are noted.
Positive factors
- High-grade antimony intercept
- Step-out extension
- QA/QC disclosed
- Compositing transparent
Negative factors
- Apparent width only
- Deleterious elements present
Evidence · table
“1.96”
Context: 1.22
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
Compositing Transparentpositive
Cut-off grade and internal dilution rules are clearly stated for reported intervals.
Why it applies: cutoff_grade and internal dilution are both stated
Deleterious Elements Presentnegative
Penalty elements (arsenic, antimony, etc.) or refractory concerns noted in the release.
Why it applies: deleterious_flag is true
ACP26DD029Antimony Canyon · antimonyGrade: 0.28Grade Unit: %Intercept: 7.19 mView all detailsHide details
Identity
- Hole ID
- ACP26DD029
- Project
- Antimony Canyon
- Commodity
- antimony
- Region
- usa_ut
- Reported Region
- usa_ut
- Ticker
- AT4
Geometry
- Grade
- 0.28
- Grade Unit
- %
- Intercept
- 7.19 m
- From
- 7.62 m
- To
- 14.81 m
- Hole Depth
- 50.29 m
- Intercept Depth
- 7.62 m
Classification
- Deposit Type
- other
- Program
- exploration
- Sample Type
- drill
- Group ID
- ACP26DD029:7.62-14.81
- Mining Method
- open_pit
Location
- Easting
- 420886.754
- Northing
- 4216802.867
- CRS
- WGS84, UTM Zone 12N
- Loc. Confidence
- high
- Loc. Source
- document
QA/QC
- Laboratory
- American Assay Laboratories, Sparks, Nevada
- QA/QC Disclosed
- Yes
- QP Signed
- Yes
- QA/QC Methods
- standards, blanks
Deleterious
- Deleterious Flag
- Yes
- Deleterious Elements
- arsenic, mercury, thallium, molybdenum
Compositing
- Cutoff Grade
- 0.1
- Cutoff Unit
- % Sb
- Dilution Disclosed
- Yes
- Max Dilution
- 3 m
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-10-14T00:00:00.000Z
Reasoning: This is a weak-grade antimony intercept from new drilling, extending the mineralized system, though true width is not confirmed and deleterious elements are noted.
Positive factors
- Step-out extension
- QA/QC disclosed
- Compositing transparent
Negative factors
- Apparent width only
- Deleterious elements present
Evidence · table
“0.28”
Context: 7.19
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
Compositing Transparentpositive
Cut-off grade and internal dilution rules are clearly stated for reported intervals.
Why it applies: cutoff_grade and internal dilution are both stated
Deleterious Elements Presentnegative
Penalty elements (arsenic, antimony, etc.) or refractory concerns noted in the release.
Why it applies: deleterious_flag is true
ACP26DD029Antimony Canyon · antimonyGrade: 0.86Grade Unit: %Intercept: 1.83 mView all detailsHide details
Identity
- Hole ID
- ACP26DD029
- Project
- Antimony Canyon
- Commodity
- antimony
- Region
- usa_ut
- Reported Region
- usa_ut
- Ticker
- AT4
Geometry
- Grade
- 0.86
- Grade Unit
- %
- Intercept
- 1.83 m
- From
- 8.84 m
- To
- 10.67 m
- Hole Depth
- 50.29 m
- Intercept Depth
- 7.62 m
Classification
- Deposit Type
- other
- Program
- exploration
- Sample Type
- drill
- Group ID
- ACP26DD029:8.84-10.67
- Mining Method
- open_pit
Location
- Easting
- 420886.754
- Northing
- 4216802.867
- CRS
- WGS84, UTM Zone 12N
- Loc. Confidence
- high
- Loc. Source
- document
QA/QC
- Laboratory
- American Assay Laboratories, Sparks, Nevada
- QA/QC Disclosed
- Yes
- QP Signed
- Yes
- QA/QC Methods
- standards, blanks
Deleterious
- Deleterious Flag
- Yes
- Deleterious Elements
- arsenic, mercury, thallium, molybdenum
Compositing
- Cutoff Grade
- 0.1
- Cutoff Unit
- % Sb
- Dilution Disclosed
- Yes
- Max Dilution
- 3 m
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-10-14T00:00:00.000Z
Reasoning: This is a moderate-grade antimony sub-interval from new drilling, extending the mineralized system, though true width is not confirmed and deleterious elements are noted.
Positive factors
- Step-out extension
- QA/QC disclosed
- Compositing transparent
Negative factors
- Apparent width only
- Deleterious elements present
Evidence · table
“0.86”
Context: 1.83
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
Compositing Transparentpositive
Cut-off grade and internal dilution rules are clearly stated for reported intervals.
Why it applies: cutoff_grade and internal dilution are both stated
Deleterious Elements Presentnegative
Penalty elements (arsenic, antimony, etc.) or refractory concerns noted in the release.
Why it applies: deleterious_flag is true
ACP26DD016Antimony Canyon · antimonyGrade: 0.1Grade Unit: %Intercept: 0.46 mView all detailsHide details
Identity
- Hole ID
- ACP26DD016
- Project
- Antimony Canyon
- Commodity
- antimony
- Region
- usa_ut
- Reported Region
- usa_ut
- Ticker
- AT4
Geometry
- Grade
- 0.1
- Grade Unit
- %
- Intercept
- 0.46 m
- From
- 64.86 m
- To
- 65.32 m
- Hole Depth
- 83.82 m
- Intercept Depth
- 64.86 m
Classification
- Deposit Type
- other
- Program
- exploration
- Sample Type
- drill
- Group ID
- ACP26DD016:64.86-65.32
- Mining Method
- underground
Location
- Easting
- 420832.436
- Northing
- 4216682.199
- CRS
- WGS84, UTM Zone 12N
- Loc. Confidence
- high
- Loc. Source
- document
QA/QC
- Laboratory
- American Assay Laboratories, Sparks, Nevada
- QA/QC Disclosed
- Yes
- QP Signed
- Yes
- QA/QC Methods
- standards, blanks
Deleterious
- Deleterious Flag
- Yes
- Deleterious Elements
- arsenic, mercury, thallium, molybdenum
Compositing
- Cutoff Grade
- 0.1
- Cutoff Unit
- % Sb
- Dilution Disclosed
- Yes
- Max Dilution
- 3 m
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-10-14T00:00:00.000Z
Reasoning: This is a weak-grade antimony intercept, though it contributes to the overall understanding of the mineralized system and QA/QC was disclosed.
Positive factors
- QA/QC disclosed
- Compositing transparent
Negative factors
- Weak grade
- Apparent width only
- Deleterious elements present
Evidence · table
“0.10”
Context: 0.46
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
Compositing Transparentpositive
Cut-off grade and internal dilution rules are clearly stated for reported intervals.
Why it applies: cutoff_grade and internal dilution are both stated
Deleterious Elements Presentnegative
Penalty elements (arsenic, antimony, etc.) or refractory concerns noted in the release.
Why it applies: deleterious_flag is true
ACP26DD017Antimony Canyon · antimonyGrade: 0.18Grade Unit: %Intercept: 1.64 mView all detailsHide details
Identity
- Hole ID
- ACP26DD017
- Project
- Antimony Canyon
- Commodity
- antimony
- Region
- usa_ut
- Reported Region
- usa_ut
- Ticker
- AT4
Geometry
- Grade
- 0.18
- Grade Unit
- %
- Intercept
- 1.64 m
- From
- 37.37 m
- To
- 39.01 m
- Hole Depth
- 62.48 m
- Intercept Depth
- 37.37 m
Classification
- Deposit Type
- other
- Program
- exploration
- Sample Type
- drill
- Group ID
- ACP26DD017:37.37-39.01
- Mining Method
- underground
Location
- Easting
- 420831.037
- Northing
- 4216682.447
- CRS
- WGS84, UTM Zone 12N
- Loc. Confidence
- high
- Loc. Source
- document
QA/QC
- Laboratory
- American Assay Laboratories, Sparks, Nevada
- QA/QC Disclosed
- Yes
- QP Signed
- Yes
- QA/QC Methods
- standards, blanks
Deleterious
- Deleterious Flag
- Yes
- Deleterious Elements
- arsenic, mercury, thallium, molybdenum
Compositing
- Cutoff Grade
- 0.1
- Cutoff Unit
- % Sb
- Dilution Disclosed
- Yes
- Max Dilution
- 3 m
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-10-14T00:00:00.000Z
Reasoning: This is a weak-grade antimony intercept, though it confirms continuity of the mineralized system and QA/QC was disclosed.
Positive factors
- QA/QC disclosed
- Compositing transparent
Negative factors
- Weak grade
- Apparent width only
- Deleterious elements present
Evidence · table
“0.18”
Context: 1.64
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
Compositing Transparentpositive
Cut-off grade and internal dilution rules are clearly stated for reported intervals.
Why it applies: cutoff_grade and internal dilution are both stated
Deleterious Elements Presentnegative
Penalty elements (arsenic, antimony, etc.) or refractory concerns noted in the release.
Why it applies: deleterious_flag is true
ACP26DD018Antimony Canyon · antimonyGrade: 0.2Grade Unit: %Intercept: 2.77 mView all detailsHide details
Identity
- Hole ID
- ACP26DD018
- Project
- Antimony Canyon
- Commodity
- antimony
- Region
- usa_ut
- Reported Region
- usa_ut
- Ticker
- AT4
Geometry
- Grade
- 0.2
- Grade Unit
- %
- Intercept
- 2.77 m
- From
- 47.98 m
- To
- 50.75 m
- Hole Depth
- 82.3 m
- Intercept Depth
- 47.98 m
Classification
- Deposit Type
- other
- Program
- exploration
- Sample Type
- drill
- Group ID
- ACP26DD018:47.98-50.75
- Mining Method
- underground
Location
- Easting
- 420831.036
- Northing
- 4216682.452
- CRS
- WGS84, UTM Zone 12N
- Loc. Confidence
- high
- Loc. Source
- document
QA/QC
- Laboratory
- American Assay Laboratories, Sparks, Nevada
- QA/QC Disclosed
- Yes
- QP Signed
- Yes
- QA/QC Methods
- standards, blanks
Deleterious
- Deleterious Flag
- Yes
- Deleterious Elements
- arsenic, mercury, thallium, molybdenum
Compositing
- Cutoff Grade
- 0.1
- Cutoff Unit
- % Sb
- Dilution Disclosed
- Yes
- Max Dilution
- 3 m
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-10-14T00:00:00.000Z
Reasoning: This is a weak-grade antimony intercept, though it confirms continuity of the mineralized system and QA/QC was disclosed.
Positive factors
- QA/QC disclosed
- Compositing transparent
Negative factors
- Weak grade
- Apparent width only
- Deleterious elements present
Evidence · table
“0.20”
Context: 2.77
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
Compositing Transparentpositive
Cut-off grade and internal dilution rules are clearly stated for reported intervals.
Why it applies: cutoff_grade and internal dilution are both stated
Deleterious Elements Presentnegative
Penalty elements (arsenic, antimony, etc.) or refractory concerns noted in the release.
Why it applies: deleterious_flag is true
Fact 11White Spar · silverGrade: 665Grade Unit: g/tView all detailsHide details
Identity
- Project
- White Spar
- Commodity
- silver
- Region
- usa_az
- Reported Region
- Arizona
- Ticker
- AT4
Geometry
- Grade
- 665
- Grade Unit
- g/t
Classification
- Deposit Type
- epithermal
- Sample Type
- surface
Location
- Location
- Pit/trench spoil at northern end of corridor
- Latitude
- 34.41
- Longitude
- -112.54
- Easting
- 358033
- Northing
- 3809182
- CRS
- WGS84, UTM Zone 12N
- Loc. Confidence
- medium
- Loc. Source
- document
QA/QC
- Laboratory
- American Assay Laboratories, Sparks, Nevada
- QA/QC Disclosed
- Yes
- QP Signed
- Yes
Deleterious
- Deleterious Flag
- Yes
- Deleterious Elements
- lead, barium, strontium, mercury, cadmium
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-10-14T00:00:00.000Z
Reasoning: This is an exceptionally high-grade silver rock chip sample, indicating significant mineralization, but it is a selective surface sample with QA/QC limitations and not representative of in-situ grades or widths.
Positive factors
- Bonanza intercept
- High-grade silver
Negative factors
- Rock chip samples are selective and not representative
- QA/QC limitations
- Apparent width only
- Deleterious elements present
Evidence · table
“665”
Context: WS008
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
Deleterious Elements Presentnegative
Penalty elements (arsenic, antimony, etc.) or refractory concerns noted in the release.
Why it applies: deleterious_flag is true
Fact 12White Spar · silverGrade: 394Grade Unit: g/tView all detailsHide details
Identity
- Project
- White Spar
- Commodity
- silver
- Region
- usa_az
- Reported Region
- Arizona
- Ticker
- AT4
Geometry
- Grade
- 394
- Grade Unit
- g/t
Classification
- Deposit Type
- epithermal
- Sample Type
- surface
Location
- Location
- Quartz-rich spoil, pit at southern end of corridor
- Latitude
- 34.4
- Longitude
- -112.54
- Easting
- 358193
- Northing
- 3808599
- CRS
- WGS84, UTM Zone 12N
- Loc. Confidence
- medium
- Loc. Source
- document
QA/QC
- Laboratory
- American Assay Laboratories, Sparks, Nevada
- QA/QC Disclosed
- Yes
- QP Signed
- Yes
Deleterious
- Deleterious Flag
- Yes
- Deleterious Elements
- lead, barium, strontium, mercury, cadmium
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-10-14T00:00:00.000Z
Reasoning: This is a very high-grade silver rock chip sample, indicating significant mineralization, but it is a selective surface sample with QA/QC limitations and not representative of in-situ grades or widths.
Positive factors
- High-grade silver
Negative factors
- Rock chip samples are selective and not representative
- QA/QC limitations
- Apparent width only
- Deleterious elements present
Evidence · table
“394”
Context: WS007
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
Deleterious Elements Presentnegative
Penalty elements (arsenic, antimony, etc.) or refractory concerns noted in the release.
Why it applies: deleterious_flag is true
Fact 13White Spar · silverGrade: 432Grade Unit: g/tView all detailsHide details
Identity
- Project
- White Spar
- Commodity
- silver
- Region
- usa_az
- Reported Region
- Arizona
- Ticker
- AT4
Geometry
- Grade
- 432
- Grade Unit
- g/t
Classification
- Deposit Type
- epithermal
- Sample Type
- surface
Location
- Location
- Eastern lode at historic shaft - separate structure
- Latitude
- 34.41
- Longitude
- -112.54
- Easting
- 358310
- Northing
- 3809168
- CRS
- WGS84, UTM Zone 12N
- Loc. Confidence
- medium
- Loc. Source
- document
QA/QC
- Laboratory
- American Assay Laboratories, Sparks, Nevada
- QA/QC Disclosed
- Yes
- QP Signed
- Yes
Deleterious
- Deleterious Flag
- Yes
- Deleterious Elements
- lead, barium, strontium, mercury, cadmium
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-10-14T00:00:00.000Z
Reasoning: This is a very high-grade silver rock chip sample, indicating significant mineralization, but it is a selective surface sample with QA/QC limitations and not representative of in-situ grades or widths.
Positive factors
- High-grade silver
Negative factors
- Rock chip samples are selective and not representative
- QA/QC limitations
- Apparent width only
- Deleterious elements present
Evidence · table
“432”
Context: WS009
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
Deleterious Elements Presentnegative
Penalty elements (arsenic, antimony, etc.) or refractory concerns noted in the release.
Why it applies: deleterious_flag is true
Fact 14White Spar · silverGrade: 94.1Grade Unit: g/tView all detailsHide details
Identity
- Project
- White Spar
- Commodity
- silver
- Region
- usa_az
- Reported Region
- Arizona
- Ticker
- AT4
Geometry
- Grade
- 94.1
- Grade Unit
- g/t
Classification
- Deposit Type
- epithermal
- Sample Type
- surface
Location
- Location
- Eastern lode, 3.5m SW of WS009
- Latitude
- 34.41
- Longitude
- -112.54
- Easting
- 358308
- Northing
- 3809165
- CRS
- WGS84, UTM Zone 12N
- Loc. Confidence
- medium
- Loc. Source
- document
QA/QC
- Laboratory
- American Assay Laboratories, Sparks, Nevada
- QA/QC Disclosed
- Yes
- QP Signed
- Yes
Deleterious
- Deleterious Flag
- Yes
- Deleterious Elements
- lead, barium, strontium, mercury, cadmium
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-10-14T00:00:00.000Z
Reasoning: This is a high-grade silver rock chip sample, indicating mineralization, but it is a selective surface sample with QA/QC limitations and not representative of in-situ grades or widths.
Positive factors
- High-grade silver
Negative factors
- Rock chip samples are selective and not representative
- QA/QC limitations
- Apparent width only
- Deleterious elements present
Evidence · table
“94.1”
Context: WS010
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
Deleterious Elements Presentnegative
Penalty elements (arsenic, antimony, etc.) or refractory concerns noted in the release.
Why it applies: deleterious_flag is true
Fact 15White Spar · silverGrade: 12Grade Unit: g/tView all detailsHide details
Identity
- Project
- White Spar
- Commodity
- silver
- Region
- usa_az
- Reported Region
- Arizona
- Ticker
- AT4
Geometry
- Grade
- 12
- Grade Unit
- g/t
Classification
- Deposit Type
- epithermal
- Sample Type
- surface
Location
- Location
- Green clay hangingwall to WS002; actively worked face
- Latitude
- 34.41
- Longitude
- -112.54
- Easting
- 358096
- Northing
- 3808986
- CRS
- WGS84, UTM Zone 12N
- Loc. Confidence
- medium
- Loc. Source
- document
QA/QC
- Laboratory
- American Assay Laboratories, Sparks, Nevada
- QA/QC Disclosed
- Yes
- QP Signed
- Yes
Deleterious
- Deleterious Flag
- Yes
- Deleterious Elements
- lead, barium, strontium, mercury, cadmium
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-10-14T00:00:00.000Z
Reasoning: This is a low-grade silver rock chip sample, but it contributes to the understanding of the mineralized system, though it is a selective surface sample with QA/QC limitations.
Negative factors
- Rock chip samples are selective and not representative
- QA/QC limitations
- Apparent width only
- Deleterious elements present
Evidence · table
“12.0”
Context: WS001
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
Deleterious Elements Presentnegative
Penalty elements (arsenic, antimony, etc.) or refractory concerns noted in the release.
Why it applies: deleterious_flag is true
Fact 16White Spar · silverGrade: 24Grade Unit: g/tView all detailsHide details
Identity
- Project
- White Spar
- Commodity
- silver
- Region
- usa_az
- Reported Region
- Arizona
- Ticker
- AT4
Geometry
- Grade
- 24
- Grade Unit
- g/t
Classification
- Deposit Type
- epithermal
- Sample Type
- surface
Location
- Location
- Quartz vein, visible stibnite, vuggy; 148–150°/84°→238°
- Latitude
- 34.41
- Longitude
- -112.54
- Easting
- 358096
- Northing
- 3808986
- CRS
- WGS84, UTM Zone 12N
- Loc. Confidence
- medium
- Loc. Source
- document
QA/QC
- Laboratory
- American Assay Laboratories, Sparks, Nevada
- QA/QC Disclosed
- Yes
- QP Signed
- Yes
Deleterious
- Deleterious Flag
- Yes
- Deleterious Elements
- lead, barium, strontium, mercury, cadmium
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-10-14T00:00:00.000Z
Reasoning: This is a low-grade silver rock chip sample, but it contributes to the understanding of the mineralized system, though it is a selective surface sample with QA/QC limitations.
Negative factors
- Rock chip samples are selective and not representative
- QA/QC limitations
- Apparent width only
- Deleterious elements present
Evidence · table
“24.0”
Context: WS002
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
Deleterious Elements Presentnegative
Penalty elements (arsenic, antimony, etc.) or refractory concerns noted in the release.
Why it applies: deleterious_flag is true
Fact 17White Spar · silverGrade: 0.7Grade Unit: g/tView all detailsHide details
Identity
- Project
- White Spar
- Commodity
- silver
- Region
- usa_az
- Reported Region
- Arizona
- Ticker
- AT4
Geometry
- Grade
- 0.7
- Grade Unit
- g/t
Classification
- Deposit Type
- epithermal
- Sample Type
- surface
Location
- Location
- Purple footwall alteration; sharp contact with vein
- Latitude
- 34.41
- Longitude
- -112.54
- Easting
- 358096
- Northing
- 3808986
- CRS
- WGS84, UTM Zone 12N
- Loc. Confidence
- medium
- Loc. Source
- document
QA/QC
- Laboratory
- American Assay Laboratories, Sparks, Nevada
- QA/QC Disclosed
- Yes
- QP Signed
- Yes
Deleterious
- Deleterious Flag
- Yes
- Deleterious Elements
- lead, barium, strontium, mercury, cadmium
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-10-14T00:00:00.000Z
Reasoning: This is a very low-grade silver rock chip sample, but it contributes to the understanding of the mineralized system, though it is a selective surface sample with QA/QC limitations.
Negative factors
- Weak grade
- Rock chip samples are selective and not representative
- QA/QC limitations
- Apparent width only
- Deleterious elements present
Evidence · table
“0.7”
Context: WS003
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
Deleterious Elements Presentnegative
Penalty elements (arsenic, antimony, etc.) or refractory concerns noted in the release.
Why it applies: deleterious_flag is true
Fact 18White Spar · silverGrade: 23.4Grade Unit: g/tView all detailsHide details
Identity
- Project
- White Spar
- Commodity
- silver
- Region
- usa_az
- Reported Region
- Arizona
- Ticker
- AT4
Geometry
- Grade
- 23.4
- Grade Unit
- g/t
Classification
- Deposit Type
- epithermal
- Sample Type
- surface
Location
- Location
- Same vein, 4–5m NE, opposite side of cutting
- Latitude
- 34.41
- Longitude
- -112.54
- Easting
- 358100
- Northing
- 3808984
- CRS
- WGS84, UTM Zone 12N
- Loc. Confidence
- medium
- Loc. Source
- document
QA/QC
- Laboratory
- American Assay Laboratories, Sparks, Nevada
- QA/QC Disclosed
- Yes
- QP Signed
- Yes
Deleterious
- Deleterious Flag
- Yes
- Deleterious Elements
- lead, barium, strontium, mercury, cadmium
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-10-14T00:00:00.000Z
Reasoning: This is a low-grade silver rock chip sample, but it contributes to the understanding of the mineralized system, though it is a selective surface sample with QA/QC limitations.
Negative factors
- Rock chip samples are selective and not representative
- QA/QC limitations
- Apparent width only
- Deleterious elements present
Evidence · table
“23.4”
Context: WS004
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
Deleterious Elements Presentnegative
Penalty elements (arsenic, antimony, etc.) or refractory concerns noted in the release.
Why it applies: deleterious_flag is true
Fact 19White Spar · silverGrade: 0.6Grade Unit: g/tView all detailsHide details
Identity
- Project
- White Spar
- Commodity
- silver
- Region
- usa_az
- Reported Region
- Arizona
- Ticker
- AT4
Geometry
- Grade
- 0.6
- Grade Unit
- g/t
Classification
- Deposit Type
- epithermal
- Sample Type
- surface
Location
- Location
- Southern extension of alteration, 108 m SSE
- Latitude
- 34.41
- Longitude
- -112.54
- Easting
- 358115
- Northing
- 3808880
- CRS
- WGS84, UTM Zone 12N
- Loc. Confidence
- medium
- Loc. Source
- document
QA/QC
- Laboratory
- American Assay Laboratories, Sparks, Nevada
- QA/QC Disclosed
- Yes
- QP Signed
- Yes
Deleterious
- Deleterious Flag
- Yes
- Deleterious Elements
- lead, barium, strontium, mercury, cadmium
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-10-14T00:00:00.000Z
Reasoning: This is a very low-grade silver rock chip sample, but it contributes to the understanding of the mineralized system, though it is a selective surface sample with QA/QC limitations.
Negative factors
- Weak grade
- Rock chip samples are selective and not representative
- QA/QC limitations
- Apparent width only
- Deleterious elements present
Evidence · table
“0.6”
Context: WS005
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
Deleterious Elements Presentnegative
Penalty elements (arsenic, antimony, etc.) or refractory concerns noted in the release.
Why it applies: deleterious_flag is true
Fact 20White Spar · silverGrade: 17.7Grade Unit: g/tView all detailsHide details
Identity
- Project
- White Spar
- Commodity
- silver
- Region
- usa_az
- Reported Region
- Arizona
- Ticker
- AT4
Geometry
- Grade
- 17.7
- Grade Unit
- g/t
Classification
- Deposit Type
- epithermal
- Sample Type
- surface
Location
- Location
- Quartz float/spoil, southern end of corridor
- Latitude
- 34.4
- Longitude
- -112.54
- Easting
- 358191
- Northing
- 3808621
- CRS
- WGS84, UTM Zone 12N
- Loc. Confidence
- medium
- Loc. Source
- document
QA/QC
- Laboratory
- American Assay Laboratories, Sparks, Nevada
- QA/QC Disclosed
- Yes
- QP Signed
- Yes
Deleterious
- Deleterious Flag
- Yes
- Deleterious Elements
- lead, barium, strontium, mercury, cadmium
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-10-14T00:00:00.000Z
Reasoning: This is a low-grade silver rock chip sample, but it contributes to the understanding of the mineralized system, though it is a selective surface sample with QA/QC limitations.
Negative factors
- Rock chip samples are selective and not representative
- QA/QC limitations
- Apparent width only
- Deleterious elements present
Evidence · table
“17.7”
Context: WS006
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
Deleterious Elements Presentnegative
Penalty elements (arsenic, antimony, etc.) or refractory concerns noted in the release.
Why it applies: deleterious_flag is true
Fact 21White Spar · silverGrade: 1.5Grade Unit: g/tView all detailsHide details
Identity
- Project
- White Spar
- Commodity
- silver
- Region
- usa_az
- Reported Region
- Arizona
- Ticker
- AT4
Geometry
- Grade
- 1.5
- Grade Unit
- g/t
Classification
- Deposit Type
- epithermal
- Sample Type
- surface
Location
- Location
- Historic trench, 17m SSE of WS009 - local background
- Latitude
- 34.41
- Longitude
- -112.54
- Easting
- 358316
- Northing
- 3809152
- CRS
- WGS84, UTM Zone 12N
- Loc. Confidence
- medium
- Loc. Source
- document
QA/QC
- Laboratory
- American Assay Laboratories, Sparks, Nevada
- QA/QC Disclosed
- Yes
- QP Signed
- Yes
Deleterious
- Deleterious Flag
- Yes
- Deleterious Elements
- lead, barium, strontium, mercury, cadmium
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-10-14T00:00:00.000Z
Reasoning: This is a very low-grade silver rock chip sample, representing local background, though it is a selective surface sample with QA/QC limitations.
Negative factors
- Weak grade
- Rock chip samples are selective and not representative
- QA/QC limitations
- Apparent width only
- Deleterious elements present
Evidence · table
“1.5”
Context: WS011
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
Deleterious Elements Presentnegative
Penalty elements (arsenic, antimony, etc.) or refractory concerns noted in the release.
Why it applies: deleterious_flag is true
ACO2622026Antimony Canyon · antimonyGrade: 3.98Grade Unit: %Intercept: 10.37 mHistorical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Hole ID
- ACO2622026
- Project
- Antimony Canyon
- Commodity
- antimony
- Region
- usa_ut
- Reported Region
- usa_ut
- Ticker
- AT4
Geometry
- Grade
- 3.98
- Grade Unit
- %
- Intercept
- 10.37 m
- From
- 3.35 m
- To
- 13.72 m
- Intercept Depth
- 3.35 m
Classification
- Deposit Type
- other
- Program
- exploration
- Sample Type
- drill
- Group ID
- ACO2622026:3.35-13.72
QA/QC
- QA/QC Disclosed
- Yes
Compositing
- Dilution Disclosed
- Yes
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Interp. Status
- scored
- Historical
- Yes
- Historical Source Date
- 2026-06-05T00:00:00.000Z
Dates
- Event date
- 2026-10-14T00:00:00.000Z
Reasoning: This is a previously reported high-grade antimony intercept, re-stated for context, but not new information.
Positive factors
- High-grade antimony intercept
Negative factors
- Stale data re-release
- Apparent width only
Evidence · text
“10.37m @ 3.98% Sb from 3.35m including 4.57m @ 8.56% Sb from 6.71m (ACO2622026)”
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
Stale Data Re-releasenegative
Historical results re-announced with no new assays or reinterpretation — low genuine novelty.
Why it applies: the fact restates a prior release
ACO2622026Antimony Canyon · antimonyGrade: 8.56Grade Unit: %Intercept: 4.57 mHistorical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Hole ID
- ACO2622026
- Project
- Antimony Canyon
- Commodity
- antimony
- Region
- usa_ut
- Reported Region
- usa_ut
- Ticker
- AT4
Geometry
- Grade
- 8.56
- Grade Unit
- %
- Intercept
- 4.57 m
- From
- 6.71 m
- To
- 11.28 m
- Intercept Depth
- 6.71 m
Classification
- Deposit Type
- other
- Program
- exploration
- Sample Type
- drill
- Group ID
- ACO2622026:6.71-11.28
QA/QC
- QA/QC Disclosed
- Yes
Compositing
- Dilution Disclosed
- Yes
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Interp. Status
- scored
- Historical
- Yes
- Historical Source Date
- 2026-06-05T00:00:00.000Z
Dates
- Event date
- 2026-10-14T00:00:00.000Z
Reasoning: This is a previously reported high-grade antimony sub-interval, re-stated for context, but not new information.
Positive factors
- High-grade antimony intercept
Negative factors
- Stale data re-release
- Apparent width only
Evidence · text
“4.57m @ 8.56% Sb from 6.71m (ACO2622026)”
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
Stale Data Re-releasenegative
Historical results re-announced with no new assays or reinterpretation — low genuine novelty.
Why it applies: the fact restates a prior release
ACP26DD010Antimony Canyon · antimonyGrade: 3.1Grade Unit: %Intercept: 11.03 mHistorical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Hole ID
- ACP26DD010
- Project
- Antimony Canyon
- Commodity
- antimony
- Region
- usa_ut
- Reported Region
- usa_ut
- Ticker
- AT4
Geometry
- Grade
- 3.1
- Grade Unit
- %
- Intercept
- 11.03 m
- From
- 25.91 m
- To
- 36.94 m
- Intercept Depth
- 25.91 m
Classification
- Deposit Type
- other
- Program
- exploration
- Sample Type
- drill
- Group ID
- ACP26DD010:25.91-36.94
QA/QC
- QA/QC Disclosed
- Yes
Compositing
- Dilution Disclosed
- Yes
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Interp. Status
- scored
- Historical
- Yes
- Historical Source Date
- 2026-03-10T00:00:00.000Z
Dates
- Event date
- 2026-10-14T00:00:00.000Z
Reasoning: This is a previously reported high-grade antimony intercept, re-stated for context, but not new information.
Positive factors
- High-grade antimony intercept
Negative factors
- Stale data re-release
- Apparent width only
Evidence · text
“11.03m @ 3.1% Sb from 25.91m including 2.62m @12.54% Sb from 29.2m (ACP26DD010)”
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
Stale Data Re-releasenegative
Historical results re-announced with no new assays or reinterpretation — low genuine novelty.
Why it applies: the fact restates a prior release
ACP26DD010Antimony Canyon · antimonyGrade: 12.54Grade Unit: %Intercept: 2.62 mHistorical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Hole ID
- ACP26DD010
- Project
- Antimony Canyon
- Commodity
- antimony
- Region
- usa_ut
- Reported Region
- usa_ut
- Ticker
- AT4
Geometry
- Grade
- 12.54
- Grade Unit
- %
- Intercept
- 2.62 m
- From
- 29.2 m
- To
- 31.82 m
- Intercept Depth
- 29.2 m
Classification
- Deposit Type
- other
- Program
- exploration
- Sample Type
- drill
- Group ID
- ACP26DD010:29.2-31.82
QA/QC
- QA/QC Disclosed
- Yes
Compositing
- Dilution Disclosed
- Yes
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Interp. Status
- scored
- Historical
- Yes
- Historical Source Date
- 2026-03-10T00:00:00.000Z
Dates
- Event date
- 2026-10-14T00:00:00.000Z
Reasoning: This is a previously reported high-grade antimony sub-interval, re-stated for context, but not new information.
Positive factors
- High-grade antimony intercept
Negative factors
- Stale data re-release
- Apparent width only
Evidence · text
“2.62m @12.54% Sb from 29.2m (ACP26DD010)”
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
Stale Data Re-releasenegative
Historical results re-announced with no new assays or reinterpretation — low genuine novelty.
Why it applies: the fact restates a prior release
Metallurgical Results (1)
electrowinning and fire refiningDel Sol · antimonyHead Grade: 99.8Head Grade Unit: %Historical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Project
- Del Sol
- Commodity
- antimony
- Region
- usa_az
- Reported Region
- Arizona
- Ticker
- AT4
Test Work
- Program Status
- detailed
- Test Type
- electrowinning and fire refining
- Processing Route
- electrowinning and fire refining
- Sample
- White Spar material
Recovery
- Head Grade
- 99.8
- Head Grade Unit
- %
- Conc. Grade
- 99.8
- Conc. Grade Unit
- %
Lab
- Laboratory
- American Assay Laboratories, Sparks, Nevada
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Historical
- Yes
- Historical Source Date
- 2026-10-13T00:00:00.000Z
Dates
- Event date
- 2026-10-14T00:00:00.000Z
Reasoning: This fact confirms the successful production of high-purity antimony ingot from White Spar material, demonstrating the viability of the mine-to-metal strategy, though it is a reiteration of previously announced results.
Positive factors
- Pilot scale complete
- High purity product
Negative factors
- Stale data re-release
Evidence · text
“Del Sol recently producing 99.8% purity antimony ingot from White Spar material, exceeding Regulus II specifications.”
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.