Solitario Resources Announces Favorable Golden Crest Metallurgical Results
Original announcement by tmx on
- Company
- Solitario Resources Corp.
- Ticker
- SLR
- Exchange
- TSX
- Region
- South Dakota
- Primary commodity
- Gold
- Secondary commodities
- None reported
- Document categories
- Metallurgy
- Extracted
- 2026-08-24 10:54:37 UTC
Analysis by Minestarters Atlas
Minestarters Atlas analysis
Summary
Solitario Resources announced favorable initial bottle roll metallurgical test results for its Golden Crest gold project in South Dakota, with average gold recoveries of approximately 69% and 66% from two drill holes. The company considers the oxidized mineralization amenable to standard industry extraction methods, providing confidence for its 2025 drilling program. While preliminary, these results are seen as encouraging for the project's development.
Reasoning: Solitario Resources announced initial bottle roll metallurgical test results for its Golden Crest project, showing average gold recoveries of 66-69% from oxidized mineralization. While these are preliminary bench-scale tests and some individual recoveries are low, the company views them as favorable and indicative of amenability to standard extraction methods, providing confidence for future drilling. The results are new and contribute to de-risking the project's processing pathway.
Positive factors
- Initial metallurgical test work is encouraging and indicates amenability to standard industry extraction methods for gold.
- Mineralization is well oxidized, which is favorable for processing.
- The results provide confidence for the upcoming 2025 drilling program.
- QP/CP sign-off and QA/QC disclosure enhance credibility.
Negative factors
- The test work is preliminary (bottle roll scale) and may not fully represent commercial recovery.
- Average recoveries are below the 'weak' threshold for typical mill processing, though the company notes these are 'minimum recovered values'.
- Two samples showed very low recoveries, indicating potential mineralogical outliers.
Facts used in scoring: 20
Classification and evidence
Bench Scale Onlynegative
Only preliminary bench tests completed — no locked-cycle or pilot work.
Why it applies: The metallurgical test work was conducted using 'Bottle roll metallurgical testing', which is a preliminary bench-scale test.
Evidence · text
“Bottle roll metallurgical testing was conducted”
Free Millingpositive
Simple, clean ore amenable to standard processing without oxidation.
Why it applies: The company states that the gold mineralization is 'very amenable to standard industry extraction methods' and 'well oxidized', indicating free-milling characteristics.
Evidence · text
“very amenable to standard industry extraction methods. We can confidently move forward with our 2025 drilling program knowing that the mineralization we have identified to date appears to be metallurgically similar to the nearby Wharf-Homestake gold district.”
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: The scientific and technical information has been reviewed and approved by Walter Hunt, a qualified person as defined by NI 43-101.
Evidence · text
“The scientific and technical information contained in this news release has been reviewed and approved by Walter Hunt, who is a qualified person as defined by NI 43-101, Standards of Disclosure for Mineral Projects.”
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: The release details that samples were prepared and analyzed at American Assay Laboratories and mentions QA/QC protocols.
Evidence · text
“All Golden Crest core and bottle roll samples have been prepared and analyzed at the American Assay Laboratories in Reno, Nevada, which is independent from Solitario. Core sample preparation, QA/QC protocols and the gold assay results in this release have been detailed in previous news releases.”
Low Recoverynegative
Recovery below the weak band for the commodity and processing route.
Why it applies: The average gold recoveries of 69% and 66% are below the 'weak' threshold (80%) for mill_cil processing, and two samples showed recoveries of less than 31%.
Evidence · text
“Average gold recoveries were approximately 69% for nine core samples from drill hole GC-003 and 66% for nine samples from hole GC-008.”
Extracted facts
Stored fact records: 20. Some facts used in scoring do not have a stored record.
Metallurgical Results (20)
bottle rollGolden Crest · goldRecovery: 84 %Head Grade: 13.133Head Grade Unit: g/tView all detailsHide details
Identity
- Project
- Golden Crest
- Commodity
- gold
- Region
- south dakota
- Reported Region
- South Dakota
- Ticker
- SLR
Test Work
- Program Status
- preliminary
- Test Type
- bottle roll
- Processing Route
- mill_cil
- Sample
- J325313 from GC-003
- Grind P80
- 75 µm
- Leach Time
- 48 hours
Recovery
- Recovery
- 84 %
- Recovery Basis
- actual_test
- Head Grade
- 13.133
- Head Grade Unit
- g/t
Reagents
- Reagent Notes
- 0.3% NaCN / 0.3% NaOH solution
Lab
- Laboratory
- American Assay Laboratories
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2025-05-19T00:00:00.000Z
Reasoning: This sample shows a moderate gold recovery for a bottle roll test, indicating good amenability to cyanide leaching, especially given the high head grade.
Positive factors
- Recovery is within the 'moderate' range for mill_cil processing.
- High head grade.
Negative factors
- Test is preliminary (bottle roll scale).
Evidence · table
“84.0”
Context: 13133
bottle rollGolden Crest · goldRecovery: 62 %Head Grade: 0.566Head Grade Unit: g/tView all detailsHide details
Identity
- Project
- Golden Crest
- Commodity
- gold
- Region
- south dakota
- Reported Region
- South Dakota
- Ticker
- SLR
Test Work
- Program Status
- preliminary
- Test Type
- bottle roll
- Processing Route
- mill_cil
- Sample
- J325302 from GC-003
- Grind P80
- 75 µm
- Leach Time
- 48 hours
Recovery
- Recovery
- 62 %
- Recovery Basis
- actual_test
- Head Grade
- 0.566
- Head Grade Unit
- g/t
Reagents
- Reagent Notes
- 0.3% NaCN / 0.3% NaOH solution
Lab
- Laboratory
- American Assay Laboratories
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2025-05-19T00:00:00.000Z
Reasoning: This sample shows a low gold recovery for a bottle roll test, which is below the expected range for mill processing, though the company notes these are minimum values.
Negative factors
- Recovery is below the 'weak' threshold for mill_cil processing.
- Test is preliminary (bottle roll scale).
Evidence · table
“62.0”
Context: 566
bottle rollGolden Crest · goldRecovery: 85.2 %Head Grade: 0.752Head Grade Unit: g/tView all detailsHide details
Identity
- Project
- Golden Crest
- Commodity
- gold
- Region
- south dakota
- Reported Region
- South Dakota
- Ticker
- SLR
Test Work
- Program Status
- preliminary
- Test Type
- bottle roll
- Processing Route
- mill_cil
- Sample
- J325329 from GC-003
- Grind P80
- 75 µm
- Leach Time
- 48 hours
Recovery
- Recovery
- 85.2 %
- Recovery Basis
- actual_test
- Head Grade
- 0.752
- Head Grade Unit
- g/t
Reagents
- Reagent Notes
- 0.3% NaCN / 0.3% NaOH solution
Lab
- Laboratory
- American Assay Laboratories
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2025-05-19T00:00:00.000Z
Reasoning: This sample shows a moderate gold recovery for a bottle roll test, indicating good amenability to cyanide leaching.
Positive factors
- Recovery is within the 'moderate' range for mill_cil processing.
Negative factors
- Test is preliminary (bottle roll scale).
Evidence · table
“85.2”
Context: 752
bottle rollGolden Crest · goldRecovery: 65 %Head Grade: 0.6Head Grade Unit: g/tView all detailsHide details
Identity
- Project
- Golden Crest
- Commodity
- gold
- Region
- south dakota
- Reported Region
- South Dakota
- Ticker
- SLR
Test Work
- Program Status
- preliminary
- Test Type
- bottle roll
- Processing Route
- mill_cil
- Sample
- J325304 from GC-003
- Grind P80
- 75 µm
- Leach Time
- 48 hours
Recovery
- Recovery
- 65 %
- Recovery Basis
- actual_test
- Head Grade
- 0.6
- Head Grade Unit
- g/t
Reagents
- Reagent Notes
- 0.3% NaCN / 0.3% NaOH solution
Lab
- Laboratory
- American Assay Laboratories
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2025-05-19T00:00:00.000Z
Reasoning: This sample shows a low gold recovery for a bottle roll test, which is below the expected range for mill processing, though the company notes these are minimum values.
Negative factors
- Recovery is below the 'weak' threshold for mill_cil processing.
- Test is preliminary (bottle roll scale).
Evidence · table
“65.0”
Context: 600
bottle rollGolden Crest · goldRecovery: 46.6 %Head Grade: 0.684Head Grade Unit: g/tView all detailsHide details
Identity
- Project
- Golden Crest
- Commodity
- gold
- Region
- south dakota
- Reported Region
- South Dakota
- Ticker
- SLR
Test Work
- Program Status
- preliminary
- Test Type
- bottle roll
- Processing Route
- mill_cil
- Sample
- J325317 from GC-003
- Grind P80
- 75 µm
- Leach Time
- 48 hours
Recovery
- Recovery
- 46.6 %
- Recovery Basis
- actual_test
- Head Grade
- 0.684
- Head Grade Unit
- g/t
Reagents
- Reagent Notes
- 0.3% NaCN / 0.3% NaOH solution
Lab
- Laboratory
- American Assay Laboratories
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2025-05-19T00:00:00.000Z
Reasoning: This sample shows a very low gold recovery for a bottle roll test, indicating potential processing challenges for this specific material.
Negative factors
- Recovery is significantly below the 'weak' threshold for mill_cil processing.
- Test is preliminary (bottle roll scale).
Evidence · table
“46.6”
Context: 684
bottle rollGolden Crest · goldRecovery: 67.5 %Head Grade: 1.66Head Grade Unit: g/tView all detailsHide details
Identity
- Project
- Golden Crest
- Commodity
- gold
- Region
- south dakota
- Reported Region
- South Dakota
- Ticker
- SLR
Test Work
- Program Status
- preliminary
- Test Type
- bottle roll
- Processing Route
- mill_cil
- Sample
- J325303 from GC-003
- Grind P80
- 75 µm
- Leach Time
- 48 hours
Recovery
- Recovery
- 67.5 %
- Recovery Basis
- actual_test
- Head Grade
- 1.66
- Head Grade Unit
- g/t
Reagents
- Reagent Notes
- 0.3% NaCN / 0.3% NaOH solution
Lab
- Laboratory
- American Assay Laboratories
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2025-05-19T00:00:00.000Z
Reasoning: This sample shows a low gold recovery for a bottle roll test, which is below the expected range for mill processing, though the company notes these are minimum values.
Negative factors
- Recovery is below the 'weak' threshold for mill_cil processing.
- Test is preliminary (bottle roll scale).
Evidence · table
“67.5”
Context: 1660
bottle rollGolden Crest · goldRecovery: 71.5 %Head Grade: 1.76Head Grade Unit: g/tView all detailsHide details
Identity
- Project
- Golden Crest
- Commodity
- gold
- Region
- south dakota
- Reported Region
- South Dakota
- Ticker
- SLR
Test Work
- Program Status
- preliminary
- Test Type
- bottle roll
- Processing Route
- mill_cil
- Sample
- J325306 from GC-003
- Grind P80
- 75 µm
- Leach Time
- 48 hours
Recovery
- Recovery
- 71.5 %
- Recovery Basis
- actual_test
- Head Grade
- 1.76
- Head Grade Unit
- g/t
Reagents
- Reagent Notes
- 0.3% NaCN / 0.3% NaOH solution
Lab
- Laboratory
- American Assay Laboratories
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2025-05-19T00:00:00.000Z
Reasoning: This sample shows a low gold recovery for a bottle roll test, which is below the expected range for mill processing, though the company notes these are minimum values.
Negative factors
- Recovery is below the 'weak' threshold for mill_cil processing.
- Test is preliminary (bottle roll scale).
Evidence · table
“71.5”
Context: 1760
bottle rollGolden Crest · goldRecovery: 64 %Head Grade: 2.55Head Grade Unit: g/tView all detailsHide details
Identity
- Project
- Golden Crest
- Commodity
- gold
- Region
- south dakota
- Reported Region
- South Dakota
- Ticker
- SLR
Test Work
- Program Status
- preliminary
- Test Type
- bottle roll
- Processing Route
- mill_cil
- Sample
- J325315 from GC-003
- Grind P80
- 75 µm
- Leach Time
- 48 hours
Recovery
- Recovery
- 64 %
- Recovery Basis
- actual_test
- Head Grade
- 2.55
- Head Grade Unit
- g/t
Reagents
- Reagent Notes
- 0.3% NaCN / 0.3% NaOH solution
Lab
- Laboratory
- American Assay Laboratories
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2025-05-19T00:00:00.000Z
Reasoning: This sample shows a low gold recovery for a bottle roll test, which is below the expected range for mill processing, though the company notes these are minimum values.
Negative factors
- Recovery is below the 'weak' threshold for mill_cil processing.
- Test is preliminary (bottle roll scale).
Evidence · table
“64.0”
Context: 2550
bottle rollGolden Crest · goldRecovery: 74.5 %Head Grade: 1.43Head Grade Unit: g/tView all detailsHide details
Identity
- Project
- Golden Crest
- Commodity
- gold
- Region
- south dakota
- Reported Region
- South Dakota
- Ticker
- SLR
Test Work
- Program Status
- preliminary
- Test Type
- bottle roll
- Processing Route
- mill_cil
- Sample
- J325309 from GC-003
- Grind P80
- 75 µm
- Leach Time
- 48 hours
Recovery
- Recovery
- 74.5 %
- Recovery Basis
- actual_test
- Head Grade
- 1.43
- Head Grade Unit
- g/t
Reagents
- Reagent Notes
- 0.3% NaCN / 0.3% NaOH solution
Lab
- Laboratory
- American Assay Laboratories
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2025-05-19T00:00:00.000Z
Reasoning: This sample shows a low gold recovery for a bottle roll test, which is below the expected range for mill processing, though the company notes these are minimum values.
Negative factors
- Recovery is below the 'weak' threshold for mill_cil processing.
- Test is preliminary (bottle roll scale).
Evidence · table
“74.5”
Context: 1430
bottle rollGolden Crest · goldRecovery: 71.4 %Head Grade: 3.85Head Grade Unit: g/tView all detailsHide details
Identity
- Project
- Golden Crest
- Commodity
- gold
- Region
- south dakota
- Reported Region
- South Dakota
- Ticker
- SLR
Test Work
- Program Status
- preliminary
- Test Type
- bottle roll
- Processing Route
- mill_cil
- Sample
- J325946 from GC-008
- Grind P80
- 75 µm
- Leach Time
- 48 hours
Recovery
- Recovery
- 71.4 %
- Recovery Basis
- actual_test
- Head Grade
- 3.85
- Head Grade Unit
- g/t
Reagents
- Reagent Notes
- 0.3% NaCN / 0.3% NaOH solution
Lab
- Laboratory
- American Assay Laboratories
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2025-05-19T00:00:00.000Z
Reasoning: This sample shows a low gold recovery for a bottle roll test, which is below the expected range for mill processing, though the company notes these are minimum values.
Negative factors
- Recovery is below the 'weak' threshold for mill_cil processing.
- Test is preliminary (bottle roll scale).
Evidence · table
“71.4”
Context: 3850
bottle rollGolden Crest · goldRecovery: 61.5 %Head Grade: 0.53Head Grade Unit: g/tView all detailsHide details
Identity
- Project
- Golden Crest
- Commodity
- gold
- Region
- south dakota
- Reported Region
- South Dakota
- Ticker
- SLR
Test Work
- Program Status
- preliminary
- Test Type
- bottle roll
- Processing Route
- mill_cil
- Sample
- J325950 from GC-008
- Grind P80
- 75 µm
- Leach Time
- 48 hours
Recovery
- Recovery
- 61.5 %
- Recovery Basis
- actual_test
- Head Grade
- 0.53
- Head Grade Unit
- g/t
Reagents
- Reagent Notes
- 0.3% NaCN / 0.3% NaOH solution
Lab
- Laboratory
- American Assay Laboratories
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2025-05-19T00:00:00.000Z
Reasoning: This sample shows a low gold recovery for a bottle roll test, which is below the expected range for mill processing, though the company notes these are minimum values.
Negative factors
- Recovery is below the 'weak' threshold for mill_cil processing.
- Test is preliminary (bottle roll scale).
Evidence · table
“61.5”
Context: 530
bottle rollGolden Crest · goldRecovery: 61.1 %Head Grade: 1.96Head Grade Unit: g/tView all detailsHide details
Identity
- Project
- Golden Crest
- Commodity
- gold
- Region
- south dakota
- Reported Region
- South Dakota
- Ticker
- SLR
Test Work
- Program Status
- preliminary
- Test Type
- bottle roll
- Processing Route
- mill_cil
- Sample
- J325951 from GC-008
- Grind P80
- 75 µm
- Leach Time
- 48 hours
Recovery
- Recovery
- 61.1 %
- Recovery Basis
- actual_test
- Head Grade
- 1.96
- Head Grade Unit
- g/t
Reagents
- Reagent Notes
- 0.3% NaCN / 0.3% NaOH solution
Lab
- Laboratory
- American Assay Laboratories
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2025-05-19T00:00:00.000Z
Reasoning: This sample shows a low gold recovery for a bottle roll test, which is below the expected range for mill processing, though the company notes these are minimum values.
Negative factors
- Recovery is below the 'weak' threshold for mill_cil processing.
- Test is preliminary (bottle roll scale).
Evidence · table
“61.1”
Context: 1960
bottle rollGolden Crest · goldRecovery: 68.7 %Head Grade: 3.02Head Grade Unit: g/tView all detailsHide details
Identity
- Project
- Golden Crest
- Commodity
- gold
- Region
- south dakota
- Reported Region
- South Dakota
- Ticker
- SLR
Test Work
- Program Status
- preliminary
- Test Type
- bottle roll
- Processing Route
- mill_cil
- Sample
- J325957 from GC-008
- Grind P80
- 75 µm
- Leach Time
- 48 hours
Recovery
- Recovery
- 68.7 %
- Recovery Basis
- actual_test
- Head Grade
- 3.02
- Head Grade Unit
- g/t
Reagents
- Reagent Notes
- 0.3% NaCN / 0.3% NaOH solution
Lab
- Laboratory
- American Assay Laboratories
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2025-05-19T00:00:00.000Z
Reasoning: This sample shows a low gold recovery for a bottle roll test, which is below the expected range for mill processing, though the company notes these are minimum values.
Negative factors
- Recovery is below the 'weak' threshold for mill_cil processing.
- Test is preliminary (bottle roll scale).
Evidence · table
“68.7”
Context: 3020
bottle rollGolden Crest · goldRecovery: 69.5 %Head Grade: 1.36Head Grade Unit: g/tView all detailsHide details
Identity
- Project
- Golden Crest
- Commodity
- gold
- Region
- south dakota
- Reported Region
- South Dakota
- Ticker
- SLR
Test Work
- Program Status
- preliminary
- Test Type
- bottle roll
- Processing Route
- mill_cil
- Sample
- J325945 from GC-008
- Grind P80
- 75 µm
- Leach Time
- 48 hours
Recovery
- Recovery
- 69.5 %
- Recovery Basis
- actual_test
- Head Grade
- 1.36
- Head Grade Unit
- g/t
Reagents
- Reagent Notes
- 0.3% NaCN / 0.3% NaOH solution
Lab
- Laboratory
- American Assay Laboratories
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2025-05-19T00:00:00.000Z
Reasoning: This sample shows a low gold recovery for a bottle roll test, which is below the expected range for mill processing, though the company notes these are minimum values.
Negative factors
- Recovery is below the 'weak' threshold for mill_cil processing.
- Test is preliminary (bottle roll scale).
Evidence · table
“69.5”
Context: 1360
bottle rollGolden Crest · goldRecovery: 60.1 %Head Grade: 0.734Head Grade Unit: g/tView all detailsHide details
Identity
- Project
- Golden Crest
- Commodity
- gold
- Region
- south dakota
- Reported Region
- South Dakota
- Ticker
- SLR
Test Work
- Program Status
- preliminary
- Test Type
- bottle roll
- Processing Route
- mill_cil
- Sample
- J325935 from GC-008
- Grind P80
- 75 µm
- Leach Time
- 48 hours
Recovery
- Recovery
- 60.1 %
- Recovery Basis
- actual_test
- Head Grade
- 0.734
- Head Grade Unit
- g/t
Reagents
- Reagent Notes
- 0.3% NaCN / 0.3% NaOH solution
Lab
- Laboratory
- American Assay Laboratories
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2025-05-19T00:00:00.000Z
Reasoning: This sample shows a low gold recovery for a bottle roll test, which is below the expected range for mill processing, though the company notes these are minimum values.
Negative factors
- Recovery is below the 'weak' threshold for mill_cil processing.
- Test is preliminary (bottle roll scale).
Evidence · table
“60.1”
Context: 734
bottle rollGolden Crest · goldRecovery: 64.8 %Head Grade: 0.884Head Grade Unit: g/tView all detailsHide details
Identity
- Project
- Golden Crest
- Commodity
- gold
- Region
- south dakota
- Reported Region
- South Dakota
- Ticker
- SLR
Test Work
- Program Status
- preliminary
- Test Type
- bottle roll
- Processing Route
- mill_cil
- Sample
- J325956 from GC-008
- Grind P80
- 75 µm
- Leach Time
- 48 hours
Recovery
- Recovery
- 64.8 %
- Recovery Basis
- actual_test
- Head Grade
- 0.884
- Head Grade Unit
- g/t
Reagents
- Reagent Notes
- 0.3% NaCN / 0.3% NaOH solution
Lab
- Laboratory
- American Assay Laboratories
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2025-05-19T00:00:00.000Z
Reasoning: This sample shows a low gold recovery for a bottle roll test, which is below the expected range for mill processing, though the company notes these are minimum values.
Negative factors
- Recovery is below the 'weak' threshold for mill_cil processing.
- Test is preliminary (bottle roll scale).
Evidence · table
“64.8”
Context: 884
bottle rollGolden Crest · goldRecovery: 64 %Head Grade: 0.65Head Grade Unit: g/tView all detailsHide details
Identity
- Project
- Golden Crest
- Commodity
- gold
- Region
- south dakota
- Reported Region
- South Dakota
- Ticker
- SLR
Test Work
- Program Status
- preliminary
- Test Type
- bottle roll
- Processing Route
- mill_cil
- Sample
- J325948 from GC-008
- Grind P80
- 75 µm
- Leach Time
- 48 hours
Recovery
- Recovery
- 64 %
- Recovery Basis
- actual_test
- Head Grade
- 0.65
- Head Grade Unit
- g/t
Reagents
- Reagent Notes
- 0.3% NaCN / 0.3% NaOH solution
Lab
- Laboratory
- American Assay Laboratories
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2025-05-19T00:00:00.000Z
Reasoning: This sample shows a low gold recovery for a bottle roll test, which is below the expected range for mill processing, though the company notes these are minimum values.
Negative factors
- Recovery is below the 'weak' threshold for mill_cil processing.
- Test is preliminary (bottle roll scale).
Evidence · table
“64.0”
Context: 650
bottle rollGolden Crest · goldRecovery: 77.2 %Head Grade: 0.479Head Grade Unit: g/tView all detailsHide details
Identity
- Project
- Golden Crest
- Commodity
- gold
- Region
- south dakota
- Reported Region
- South Dakota
- Ticker
- SLR
Test Work
- Program Status
- preliminary
- Test Type
- bottle roll
- Processing Route
- mill_cil
- Sample
- J325940 from GC-008
- Grind P80
- 75 µm
- Leach Time
- 48 hours
Recovery
- Recovery
- 77.2 %
- Recovery Basis
- actual_test
- Head Grade
- 0.479
- Head Grade Unit
- g/t
Reagents
- Reagent Notes
- 0.3% NaCN / 0.3% NaOH solution
Lab
- Laboratory
- American Assay Laboratories
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2025-05-19T00:00:00.000Z
Reasoning: This sample shows a low gold recovery for a bottle roll test, which is below the expected range for mill processing, though the company notes these are minimum values.
Negative factors
- Recovery is below the 'weak' threshold for mill_cil processing.
- Test is preliminary (bottle roll scale).
Evidence · table
“77.2”
Context: 479
bottle rollGolden Crest · goldRecovery: 30 %View all detailsHide details
Identity
- Project
- Golden Crest
- Commodity
- gold
- Region
- south dakota
- Reported Region
- South Dakota
- Ticker
- SLR
Test Work
- Program Status
- preliminary
- Test Type
- bottle roll
- Processing Route
- mill_cil
- Sample
- GC-010 sample
- Grind P80
- 75 µm
- Leach Time
- 48 hours
Recovery
- Recovery
- 30 %
- Recovery Basis
- actual_test
Reagents
- Reagent Notes
- 0.3% NaCN / 0.3% NaOH solution
Lab
- Laboratory
- American Assay Laboratories
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2025-05-19T00:00:00.000Z
Reasoning: This sample shows a very low gold recovery, significantly below expectations for mill processing, and is identified by the company as a mineralogical outlier.
Negative factors
- Recovery is significantly below the 'weak' threshold for mill_cil processing.
- Test is preliminary (bottle roll scale).
- Indicated as a mineralogical outlier.
Evidence · text
“One sample each from holes GC-010 and GC-011 were also tested and displayed lower recoveries of less than 31%.”
bottle rollGolden Crest · goldRecovery: 30 %View all detailsHide details
Identity
- Project
- Golden Crest
- Commodity
- gold
- Region
- south dakota
- Reported Region
- South Dakota
- Ticker
- SLR
Test Work
- Program Status
- preliminary
- Test Type
- bottle roll
- Processing Route
- mill_cil
- Sample
- GC-011 sample
- Grind P80
- 75 µm
- Leach Time
- 48 hours
Recovery
- Recovery
- 30 %
- Recovery Basis
- actual_test
Reagents
- Reagent Notes
- 0.3% NaCN / 0.3% NaOH solution
Lab
- Laboratory
- American Assay Laboratories
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2025-05-19T00:00:00.000Z
Reasoning: This sample shows a very low gold recovery, significantly below expectations for mill processing, and is identified by the company as a mineralogical outlier.
Negative factors
- Recovery is significantly below the 'weak' threshold for mill_cil processing.
- Test is preliminary (bottle roll scale).
- Indicated as a mineralogical outlier.
Evidence · text
“One sample each from holes GC-010 and GC-011 were also tested and displayed lower recoveries of less than 31%.”
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.