# Solitario Resources Announces Favorable Golden Crest Metallurgical Results

Canonical Atlas analysis: https://atlas-staging.minestarters.com/news/solitario-resources-announces-favorable-golden-crest-metallurgical-results--f9d8a063-e1e8-4e9d-afdc-093060d72b26

Original source: https://money.tmx.com/en/quote/SLR/news/8810298180230562/solitario-resources-announces-favorable-golden-crest-metallurgical-results

Publisher: tmx

Original announcement: 2025-05-19T12:30:00.000Z

Analysis by Minestarters Atlas

Atlas analysis published: Unknown date

Atlas analysis updated: Unknown date

- 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

Narrative sentiment: 0.30 · Bullish

## Minestarters Atlas 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 factor: Initial metallurgical test work is encouraging and indicates amenability to standard industry extraction methods for gold.

- Positive factor: Mineralization is well oxidized, which is favorable for processing.

- Positive factor: The results provide confidence for the upcoming 2025 drilling program.

- Positive factor: QP/CP sign-off and QA/QC disclosure enhance credibility.

- Negative factor: The test work is preliminary \(bottle roll scale\) and may not fully represent commercial recovery.

- Negative factor: Average recoveries are below the 'weak' threshold for typical mill processing, though the company notes these are 'minimum recovered values'.

- Negative factor: Two samples showed very low recoveries, indicating potential mineralogical outliers.

Facts used in scoring: 20

## Classification and evidence

**Bench Scale Only**

Polarity: negative

Definition: 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 Milling**

Polarity: positive

Definition: 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 Signed**

Polarity: positive

Story-specific tag

Definition: 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 Disclosed**

Polarity: positive

Story-specific tag

Definition: 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 Recovery**

Polarity: negative

Definition: 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 roll

[Link to this fact](https://atlas-staging.minestarters.com/news/solitario-resources-announces-favorable-golden-crest-metallurgical-results--f9d8a063-e1e8-4e9d-afdc-093060d72b26#fact-metallurgical-facts-0)

Golden Crest · gold

#### 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 factor: Recovery is within the 'moderate' range for mill\_cil processing.

- Positive factor: High head grade.

- Negative factor: Test is preliminary \(bottle roll scale\).

Evidence · table

> 84.0

Context: 13133

### bottle roll

[Link to this fact](https://atlas-staging.minestarters.com/news/solitario-resources-announces-favorable-golden-crest-metallurgical-results--f9d8a063-e1e8-4e9d-afdc-093060d72b26#fact-metallurgical-facts-1)

Golden Crest · gold

#### 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 factor: Recovery is below the 'weak' threshold for mill\_cil processing.

- Negative factor: Test is preliminary \(bottle roll scale\).

Evidence · table

> 62.0

Context: 566

### bottle roll

[Link to this fact](https://atlas-staging.minestarters.com/news/solitario-resources-announces-favorable-golden-crest-metallurgical-results--f9d8a063-e1e8-4e9d-afdc-093060d72b26#fact-metallurgical-facts-2)

Golden Crest · gold

#### 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 factor: Recovery is within the 'moderate' range for mill\_cil processing.

- Negative factor: Test is preliminary \(bottle roll scale\).

Evidence · table

> 85.2

Context: 752

### bottle roll

[Link to this fact](https://atlas-staging.minestarters.com/news/solitario-resources-announces-favorable-golden-crest-metallurgical-results--f9d8a063-e1e8-4e9d-afdc-093060d72b26#fact-metallurgical-facts-3)

Golden Crest · gold

#### 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 factor: Recovery is below the 'weak' threshold for mill\_cil processing.

- Negative factor: Test is preliminary \(bottle roll scale\).

Evidence · table

> 65.0

Context: 600

### bottle roll

[Link to this fact](https://atlas-staging.minestarters.com/news/solitario-resources-announces-favorable-golden-crest-metallurgical-results--f9d8a063-e1e8-4e9d-afdc-093060d72b26#fact-metallurgical-facts-4)

Golden Crest · gold

#### 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 factor: Recovery is significantly below the 'weak' threshold for mill\_cil processing.

- Negative factor: Test is preliminary \(bottle roll scale\).

Evidence · table

> 46.6

Context: 684

### bottle roll

[Link to this fact](https://atlas-staging.minestarters.com/news/solitario-resources-announces-favorable-golden-crest-metallurgical-results--f9d8a063-e1e8-4e9d-afdc-093060d72b26#fact-metallurgical-facts-5)

Golden Crest · gold

#### 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 factor: Recovery is below the 'weak' threshold for mill\_cil processing.

- Negative factor: Test is preliminary \(bottle roll scale\).

Evidence · table

> 67.5

Context: 1660

### bottle roll

[Link to this fact](https://atlas-staging.minestarters.com/news/solitario-resources-announces-favorable-golden-crest-metallurgical-results--f9d8a063-e1e8-4e9d-afdc-093060d72b26#fact-metallurgical-facts-6)

Golden Crest · gold

#### 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 factor: Recovery is below the 'weak' threshold for mill\_cil processing.

- Negative factor: Test is preliminary \(bottle roll scale\).

Evidence · table

> 71.5

Context: 1760

### bottle roll

[Link to this fact](https://atlas-staging.minestarters.com/news/solitario-resources-announces-favorable-golden-crest-metallurgical-results--f9d8a063-e1e8-4e9d-afdc-093060d72b26#fact-metallurgical-facts-7)

Golden Crest · gold

#### 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 factor: Recovery is below the 'weak' threshold for mill\_cil processing.

- Negative factor: Test is preliminary \(bottle roll scale\).

Evidence · table

> 64.0

Context: 2550

### bottle roll

[Link to this fact](https://atlas-staging.minestarters.com/news/solitario-resources-announces-favorable-golden-crest-metallurgical-results--f9d8a063-e1e8-4e9d-afdc-093060d72b26#fact-metallurgical-facts-8)

Golden Crest · gold

#### 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 factor: Recovery is below the 'weak' threshold for mill\_cil processing.

- Negative factor: Test is preliminary \(bottle roll scale\).

Evidence · table

> 74.5

Context: 1430

### bottle roll

[Link to this fact](https://atlas-staging.minestarters.com/news/solitario-resources-announces-favorable-golden-crest-metallurgical-results--f9d8a063-e1e8-4e9d-afdc-093060d72b26#fact-metallurgical-facts-9)

Golden Crest · gold

#### 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 factor: Recovery is below the 'weak' threshold for mill\_cil processing.

- Negative factor: Test is preliminary \(bottle roll scale\).

Evidence · table

> 71.4

Context: 3850

### bottle roll

[Link to this fact](https://atlas-staging.minestarters.com/news/solitario-resources-announces-favorable-golden-crest-metallurgical-results--f9d8a063-e1e8-4e9d-afdc-093060d72b26#fact-metallurgical-facts-10)

Golden Crest · gold

#### 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 factor: Recovery is below the 'weak' threshold for mill\_cil processing.

- Negative factor: Test is preliminary \(bottle roll scale\).

Evidence · table

> 61.5

Context: 530

### bottle roll

[Link to this fact](https://atlas-staging.minestarters.com/news/solitario-resources-announces-favorable-golden-crest-metallurgical-results--f9d8a063-e1e8-4e9d-afdc-093060d72b26#fact-metallurgical-facts-11)

Golden Crest · gold

#### 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 factor: Recovery is below the 'weak' threshold for mill\_cil processing.

- Negative factor: Test is preliminary \(bottle roll scale\).

Evidence · table

> 61.1

Context: 1960

### bottle roll

[Link to this fact](https://atlas-staging.minestarters.com/news/solitario-resources-announces-favorable-golden-crest-metallurgical-results--f9d8a063-e1e8-4e9d-afdc-093060d72b26#fact-metallurgical-facts-12)

Golden Crest · gold

#### 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 factor: Recovery is below the 'weak' threshold for mill\_cil processing.

- Negative factor: Test is preliminary \(bottle roll scale\).

Evidence · table

> 68.7

Context: 3020

### bottle roll

[Link to this fact](https://atlas-staging.minestarters.com/news/solitario-resources-announces-favorable-golden-crest-metallurgical-results--f9d8a063-e1e8-4e9d-afdc-093060d72b26#fact-metallurgical-facts-13)

Golden Crest · gold

#### 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 factor: Recovery is below the 'weak' threshold for mill\_cil processing.

- Negative factor: Test is preliminary \(bottle roll scale\).

Evidence · table

> 69.5

Context: 1360

### bottle roll

[Link to this fact](https://atlas-staging.minestarters.com/news/solitario-resources-announces-favorable-golden-crest-metallurgical-results--f9d8a063-e1e8-4e9d-afdc-093060d72b26#fact-metallurgical-facts-14)

Golden Crest · gold

#### 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 factor: Recovery is below the 'weak' threshold for mill\_cil processing.

- Negative factor: Test is preliminary \(bottle roll scale\).

Evidence · table

> 60.1

Context: 734

### bottle roll

[Link to this fact](https://atlas-staging.minestarters.com/news/solitario-resources-announces-favorable-golden-crest-metallurgical-results--f9d8a063-e1e8-4e9d-afdc-093060d72b26#fact-metallurgical-facts-15)

Golden Crest · gold

#### 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 factor: Recovery is below the 'weak' threshold for mill\_cil processing.

- Negative factor: Test is preliminary \(bottle roll scale\).

Evidence · table

> 64.8

Context: 884

### bottle roll

[Link to this fact](https://atlas-staging.minestarters.com/news/solitario-resources-announces-favorable-golden-crest-metallurgical-results--f9d8a063-e1e8-4e9d-afdc-093060d72b26#fact-metallurgical-facts-16)

Golden Crest · gold

#### 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 factor: Recovery is below the 'weak' threshold for mill\_cil processing.

- Negative factor: Test is preliminary \(bottle roll scale\).

Evidence · table

> 64.0

Context: 650

### bottle roll

[Link to this fact](https://atlas-staging.minestarters.com/news/solitario-resources-announces-favorable-golden-crest-metallurgical-results--f9d8a063-e1e8-4e9d-afdc-093060d72b26#fact-metallurgical-facts-17)

Golden Crest · gold

#### 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 factor: Recovery is below the 'weak' threshold for mill\_cil processing.

- Negative factor: Test is preliminary \(bottle roll scale\).

Evidence · table

> 77.2

Context: 479

### bottle roll

[Link to this fact](https://atlas-staging.minestarters.com/news/solitario-resources-announces-favorable-golden-crest-metallurgical-results--f9d8a063-e1e8-4e9d-afdc-093060d72b26#fact-metallurgical-facts-18)

Golden Crest · gold

#### 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 factor: Recovery is significantly below the 'weak' threshold for mill\_cil processing.

- Negative factor: Test is preliminary \(bottle roll scale\).

- Negative factor: 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 roll

[Link to this fact](https://atlas-staging.minestarters.com/news/solitario-resources-announces-favorable-golden-crest-metallurgical-results--f9d8a063-e1e8-4e9d-afdc-093060d72b26#fact-metallurgical-facts-19)

Golden Crest · gold

#### 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 factor: Recovery is significantly below the 'weak' threshold for mill\_cil processing.

- Negative factor: Test is preliminary \(bottle roll scale\).

- Negative factor: 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.