American Creek's JV Partner Tudor Gold Increases Overall Gold Recoveries to over 80%, Produces a High-Grade Copper, Gold and Silver Concentrate for the Goldstorm Deposit at Treaty Creek, Golden Triangle of British Columbia
Original announcement by tmx on
- Company
- American Creek Resources Ltd.
- Ticker
- AMK
- Exchange
- TSX
- Region
- British Columbia
- Primary commodity
- Gold
- Secondary commodities
- Copper, Silver
- Document categories
- Metallurgy
- Extracted
- 2026-09-15 11:08:34 UTC
Analysis by Minestarters Atlas
Minestarters Atlas analysis
Summary
Tudor Gold, American Creek's JV partner, has reported improved metallurgical results for the Goldstorm Deposit, specifically increasing gold recoveries to over 80% through the addition of a cyanide leach step on flotation tails. The testing produced a high-grade copper concentrate (30.3% Cu, 36.5 g/t Au, 99.8 g/t Ag) and demonstrated successful gold extraction from both rougher tails and pyrite concentrates.
Reasoning: The update demonstrates a material improvement in gold recovery through process optimization (leaching tails), significantly enhancing the economic potential of the Goldstorm deposit.
Positive factors
- Significant increase in gold recovery (from 63.8% to 80.2%)
- High-grade copper concentrate produced (30.3% Cu)
- Successful optimization via cyanide leach of flotation tails
- QA/QC disclosed with QP sign-off
Negative factors
- Results are from blended samples, limiting direct comparison to previous locked cycle tests
Facts used in scoring: 5
Classification and evidence
High Recoverypositive
Recovery at or above the exceptional band for the commodity and processing route.
Why it applies: Gold recovery increased to over 80% through optimized leaching.
Evidence · text
“combined gold recovery plus cyanide extraction totaled 80.2%”
QA/QC Disclosedpositive · Story-specific tag
Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).
Why it applies: Release mentions standard QA/QC sampling procedures maintained by SGS and Blue Coast.
Evidence · text
“Standard QA/QC sampling procedures are maintained by SGS and Blue Coast”
QP/CP Signedpositive · Story-specific tag
Qualified Person (QP) or Competent Person (CP) named and signed off — a member of a recognized professional association (e.g., AusIMM, SME, AIG, P.Geo) with relevant experience.
Why it applies: Travis O'Farrell, P. Eng and Ken Konkin, P.Geo are named as Qualified Persons.
Evidence · text
“conducted under the supervision of Travis O'Farrell, P. Eng... a Qualified Person”
Mill Routeneutral
Processing via mill or concentrator (CIL, CIP, tank leach, flotation).
Why it applies: the document describes a flotation route ("flotation")
Gravity Routeneutral
Gravity separation forms a material part of the flowsheet.
Why it applies: the document describes a gravity route ("gravity")
Multi-Domain Testedpositive
Variability across ore domains (oxide, transition, fresh) has been addressed.
Why it applies: 3 distinct composites were tested
Extracted facts
Stored fact records: 5. Some facts used in scoring do not have a stored record.
Metallurgical Results (5)
flotationGoldstorm Deposit · copperRecovery: 85.8 %View all detailsHide details
Identity
- Project
- Goldstorm Deposit
- Commodity
- copper
- Region
- canada_bc
- Reported Region
- British Columbia
- Ticker
- AMK
Test Work
- Program Status
- optimization
- Test Type
- flotation
- Processing Route
- copper flotation circuit
- Sample
- Lower CS-600L sub-domain copper rougher flotation tails
- Grind P80
- 75 µm
Recovery
- Recovery
- 85.8 %
- Conc. Grade
- 30.3
- Conc. Grade Unit
- %
Reagents
- Reagent Notes
- Standard copper flotation reagents used; grind size of 75 microns.
Lab
- Laboratory
- Blue Coast Research
- Consultant
- Fuse Advisors Inc.
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2025-04-22T00:00:00.000Z
Reasoning: 85.8% copper recovery is strong for a flotation circuit.
Positive factors
- Strong copper recovery of 85.8%
Evidence · text
“The batch flotation tests achieved recoveries of 85.8% copper”
Tags used in scoring
Mill Routeneutral
Processing via mill or concentrator (CIL, CIP, tank leach, flotation).
Why it applies: processing_route matches the flotation signal
flotationGoldstorm Deposit · goldRecovery: 66.3 %View all detailsHide details
Identity
- Project
- Goldstorm Deposit
- Commodity
- gold
- Region
- canada_bc
- Reported Region
- British Columbia
- Ticker
- AMK
Test Work
- Program Status
- optimization
- Test Type
- flotation
- Processing Route
- copper flotation circuit
- Sample
- Lower CS-600L sub-domain copper rougher flotation tails
- Grind P80
- 75 µm
Recovery
- Recovery
- 66.3 %
- Conc. Grade
- 36.5
- Conc. Grade Unit
- g/t
Reagents
- Reagent Notes
- Grind size of 75 microns.
Lab
- Laboratory
- Blue Coast Research
- Consultant
- Fuse Advisors Inc.
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2025-04-22T00:00:00.000Z
Reasoning: 66.3% gold recovery in flotation is a baseline for the subsequent leach optimization.
Positive factors
- High grade concentrate (36.5 g/t Au)
Evidence · text
“achieved recoveries of 85.8% copper, 66.3% gold”
Tags used in scoring
Mill Routeneutral
Processing via mill or concentrator (CIL, CIP, tank leach, flotation).
Why it applies: processing_route matches the flotation signal
Low Recoverynegative
Recovery below the weak band for the commodity and processing route.
Why it applies: 66.3% is below the weak band (80%)
flotationGoldstorm Deposit · silverRecovery: 58.1 %View all detailsHide details
Identity
- Project
- Goldstorm Deposit
- Commodity
- silver
- Region
- canada_bc
- Reported Region
- British Columbia
- Ticker
- AMK
Test Work
- Program Status
- optimization
- Test Type
- flotation
- Processing Route
- copper flotation circuit
- Sample
- Lower CS-600L sub-domain copper rougher flotation tails
- Grind P80
- 75 µm
Recovery
- Recovery
- 58.1 %
- Conc. Grade
- 99.8
- Conc. Grade Unit
- g/t
Reagents
- Reagent Notes
- Grind size of 75 microns.
Lab
- Laboratory
- Blue Coast Research
- Consultant
- Fuse Advisors Inc.
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2025-04-22T00:00:00.000Z
Reasoning: Silver recovery is reported as part of the overall flotation results.
Positive factors
- High grade silver concentrate (99.8 g/t)
Evidence · text
“and 58.1% silver into a concentrate”
Tags used in scoring
Mill Routeneutral
Processing via mill or concentrator (CIL, CIP, tank leach, flotation).
Why it applies: processing_route matches the flotation signal
Low Recoverynegative
Recovery below the weak band for the commodity and processing route.
Why it applies: 58.1% is below the weak band (75%)
cyanide leachGoldstorm Deposit · goldRecovery: 53 %View all detailsHide details
Identity
- Project
- Goldstorm Deposit
- Commodity
- gold
- Region
- canada_bc
- Reported Region
- British Columbia
- Ticker
- AMK
Test Work
- Program Status
- optimization
- Test Type
- cyanide leach
- Processing Route
- cyanide leach of flotation tails
- Sample
- Copper rougher flotation tails (cyanide leach)
Recovery
- Recovery
- 53 %
Reagents
- Reagent Notes
- Cyanide leach of the copper rougher flotation tails.
Lab
- Laboratory
- Blue Coast Research
- Consultant
- Fuse Advisors Inc.
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2025-04-22T00:00:00.000Z
Reasoning: This leach step is the primary driver for the increased overall gold recovery.
Positive factors
- Significant additional gold extraction (53%) via leaching
Evidence · text
“resulting in 53% gold extraction”
Tags used in scoring
Mill Routeneutral
Processing via mill or concentrator (CIL, CIP, tank leach, flotation).
Why it applies: processing_route matches the flotation signal
Low Recoverynegative
Recovery below the weak band for the commodity and processing route.
Why it applies: 53% is below the weak band (80%)
cyanide leachGoldstorm Deposit · goldRecovery: 45 %View all detailsHide details
Identity
- Project
- Goldstorm Deposit
- Commodity
- gold
- Region
- canada_bc
- Reported Region
- British Columbia
- Ticker
- AMK
Test Work
- Program Status
- optimization
- Test Type
- cyanide leach
- Processing Route
- sequential copper-pyrite flotation and cyanide leach
- Sample
- Pyrite concentrate (cyanide leach)
- Grind P80
- 10 µm
Recovery
- Recovery
- 45 %
Reagents
- Reagent Notes
- Pyrite concentrate reground to 10 microns and subjected to cyanide leach. Average recovery 42-48%.
Lab
- Laboratory
- Blue Coast Research
- Consultant
- Fuse Advisors Inc.
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2025-04-22T00:00:00.000Z
Reasoning: Demonstrates upside potential for gold recovery through sequential flotation.
Positive factors
- Successful gold extraction from pyrite concentrate
Evidence · text
“extracting 42-48% gold”
Tags used in scoring
Mill Routeneutral
Processing via mill or concentrator (CIL, CIP, tank leach, flotation).
Why it applies: processing_route matches the flotation signal
Low Recoverynegative
Recovery below the weak band for the commodity and processing route.
Why it applies: 45% is below the weak band (80%)
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.