Goldsky Resources Reports Positive Metallurgical Test Results for the Barsele Gold Project
Original announcement by cnw on
- Company
- Goldsky Resources Corp
- Ticker
- GSKR
- Exchange
- Unavailable
- Region
- Sweden
- Primary commodity
- Gold
- Secondary commodities
- Silver
- Document categories
- Metallurgy, Resource update
- Extracted
- 2026-09-21 13:47:22 UTC
Analysis by Minestarters Atlas
Minestarters Atlas analysis
Summary
Goldsky Resources has reported positive metallurgical test results for its Barsele gold project in Sweden. The gravity concentration and cyanide bottle-roll leach tests achieved overall gold recoveries of approximately 90% for both the Central and Avan ore bodies.
Reasoning: Positive metallurgical test results for the Barsele project showing ~90% overall gold recovery using a conventional flowsheet, supporting the ongoing PEA.
Positive factors
- High overall gold recoveries (90% range)
- Fast leach kinetics
- Conventional gravity-cyanidation flowsheet compatibility
- QA/QC disclosed with ISO 17025 accredited lab
Facts used in scoring: 9
Classification and evidence
High Recoverypositive
Recovery at or above the exceptional band for the commodity and processing route.
Why it applies: Overall gold recoveries of 89.6% and 90.8% are in the exceptional/strong band for gold leach.
Evidence · text
“overall mass balance gold recoveries of 89.6% for the Central composite sample and 90.8% for the Avan composite sample”
Mill Routeneutral
Processing via mill or concentrator (CIL, CIP, tank leach, flotation).
Why it applies: The test work involves milling and gravity concentration followed by cyanide leach.
Evidence · text
“gravity concentration and cyanide bottle-roll leach testing”
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 mentions the use of an ISO 17025 accredited laboratory and digital sample tracking.
Evidence · text
“SAEL Assay Laboratory, which is ISO 17025 accredited”
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: 2 distinct composites were tested
Extracted facts
Stored fact records: 9. Some facts used in scoring do not have a stored record.
Resource Estimates (4)
indicatedBarsele · goldTonnes: 7880000Grade: 1.27Grade Unit: g/tView all detailsHide details
Identity
- Project
- Barsele
- Commodity
- gold
- Ticker
- GSKR
Resource scope
- Estimate type
- resource
- Resource group id
- resource:68947bd681125c98026d
Resource Data
- Category
- indicated
- Tonnes
- 7880000
- Grade
- 1.27
- Grade Unit
- g/t
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-09-21T00:00:00.000Z
Reasoning: Explicit disclosure recovered from source prose.
Evidence · text
“Barsele is host to an Indicated Mineral Resource of 7.88 Mt grading 1.27 g/t Au containing 0.32 oz Moz Au”
Tags used in scoring
Indicated Resourcepositive
Reasonable geological confidence based on adequate drilling; continuity can be assumed. Basis for Probable Reserves.
Why it applies: category is "indicated"
Cut-off Undisclosednegative
High-grade interval reported without stating the cut-off grade used for compositing.
Why it applies: no cutoff_grade was stated
No Contained Metalnegative
Tonnage and grade reported but contained metal not calculated or disclosed — incomplete reporting.
Why it applies: contained_metal was not reported
inferredBarsele · goldTonnes: 28750000Grade: 1.98Grade Unit: g/tContained Metal: 1.83Contained Unit: mozView all detailsHide details
Identity
- Project
- Barsele
- Commodity
- gold
- Ticker
- GSKR
Resource scope
- Estimate type
- resource
- Resource group id
- resource:e9b3a2974577e3d9d4f1
Resource Data
- Category
- inferred
- Tonnes
- 28750000
- Grade
- 1.98
- Grade Unit
- g/t
- Contained Metal
- 1.83
- Contained Unit
- moz
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-09-21T00:00:00.000Z
Reasoning: Explicit disclosure recovered from source prose.
Evidence · text
“Barsele is host to an Indicated Mineral Resource of 7.88 Mt grading 1.27 g/t Au containing 0.32 oz Moz Au and an Inferred Mineral Resource: 28.75 Mt grading 1.98 g/t Au containing 1.83 Moz Au”
Tags used in scoring
Inferred Resourcenegative
Speculative category — limited drilling, geological continuity assumed but not confirmed. Cannot support economic studies alone.
Why it applies: category is "inferred"
Cut-off Undisclosednegative
High-grade interval reported without stating the cut-off grade used for compositing.
Why it applies: no cutoff_grade was stated
inferredRajapalot · goldTonnes: 9780000Grade: 2.8Grade Unit: g/tContained Metal: 867Contained Unit: kozView all detailsHide details
Identity
- Project
- Rajapalot
- Commodity
- gold
- Ticker
- GSKR
Resource scope
- Estimate type
- resource
- Resource group id
- resource:d6b8a8cb6612173d1e2d
Resource Data
- Category
- inferred
- Tonnes
- 9780000
- Grade
- 2.8
- Grade Unit
- g/t
- Contained Metal
- 867
- Contained Unit
- koz
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-09-21T00:00:00.000Z
Reasoning: Explicit disclosure recovered from source prose.
Evidence · text
“Rajapalot gold cobalt project situated in northern Finland, which has an Inferred Resource of 9,780kt containing 867 koz Au @ 2.8 g/t Au”
Tags used in scoring
Inferred Resourcenegative
Speculative category — limited drilling, geological continuity assumed but not confirmed. Cannot support economic studies alone.
Why it applies: category is "inferred"
Cut-off Undisclosednegative
High-grade interval reported without stating the cut-off grade used for compositing.
Why it applies: no cutoff_grade was stated
inferredRajapalot · cobaltTonnes: 9780000Grade: 441Grade Unit: ppmContained Metal: 4.3Contained Unit: ktView all detailsHide details
Identity
- Project
- Rajapalot
- Commodity
- cobalt
- Ticker
- GSKR
Resource scope
- Estimate type
- resource
- Resource group id
- resource:d6b8a8cb6612173d1e2d
Resource Data
- Category
- inferred
- Tonnes
- 9780000
- Grade
- 441
- Grade Unit
- ppm
- Contained Metal
- 4.3
- Contained Unit
- kt
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-09-21T00:00:00.000Z
Reasoning: Explicit disclosure recovered from source prose.
Evidence · text
“Rajapalot gold cobalt project situated in northern Finland, which has an Inferred Resource of 9,780kt containing 867 koz Au @ 2.8 g/t Au & 4.3 kt Co @ 441 ppm Co”
Tags used in scoring
Inferred Resourcenegative
Speculative category — limited drilling, geological continuity assumed but not confirmed. Cannot support economic studies alone.
Why it applies: category is "inferred"
Cut-off Undisclosednegative
High-grade interval reported without stating the cut-off grade used for compositing.
Why it applies: no cutoff_grade was stated
Metallurgical Results (5)
gravity concentrationBarsele gold project · goldRecovery: 30.2 %View all detailsHide details
Identity
- Project
- Barsele gold project
- Commodity
- gold
- Region
- sweden
- Reported Region
- Sweden
- Ticker
- GSKR
Test Work
- Program Status
- preliminary
- Test Type
- gravity concentration
- Sample
- Central composite sample
Recovery
- Recovery
- 30.2 %
- Recovery Basis
- to_concentrate
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-09-21T00:00:00.000Z
Reasoning: Gravity recovery of 30.2% is indicative of gravity-recoverable gold.
Positive factors
- Gravity recovery above 20% threshold
Evidence · text
“Gravity gold recoveries of 30.2% for the Central composite sample”
Tags used in scoring
Gravity Routeneutral
Gravity separation forms a material part of the flowsheet.
Why it applies: processing_route matches the gravity signal
Low Recoverynegative
Recovery below the weak band for the commodity and processing route.
Why it applies: 30.2% is below the weak band (80%)
gravity concentrationBarsele gold project · goldRecovery: 27.7 %View all detailsHide details
Identity
- Project
- Barsele gold project
- Commodity
- gold
- Region
- sweden
- Reported Region
- Sweden
- Ticker
- GSKR
Test Work
- Program Status
- preliminary
- Test Type
- gravity concentration
- Sample
- Avan composite sample
Recovery
- Recovery
- 27.7 %
- Recovery Basis
- to_concentrate
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-09-21T00:00:00.000Z
Reasoning: Gravity recovery of 27.7% is indicative of gravity-recoverable gold.
Positive factors
- Gravity recovery above 20% threshold
Evidence · text
“Gravity gold recoveries of ... 27.7% for the Avan composite sample”
Tags used in scoring
Gravity Routeneutral
Gravity separation forms a material part of the flowsheet.
Why it applies: processing_route matches the gravity signal
Low Recoverynegative
Recovery below the weak band for the commodity and processing route.
Why it applies: 27.7% is below the weak band (80%)
bottle roll leachBarsele gold project · goldRecovery: 86 %View all detailsHide details
Identity
- Project
- Barsele gold project
- Commodity
- gold
- Region
- sweden
- Reported Region
- Sweden
- Ticker
- GSKR
Test Work
- Program Status
- preliminary
- Test Type
- bottle roll leach
- Sample
- Central composite sample (gravity tailings)
Recovery
- Recovery
- 86 %
- Recovery Basis
- actual_test
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-09-21T00:00:00.000Z
Reasoning: 86% leach extraction on tailings is a solid result for a preliminary program.
Positive factors
- Strong leach extraction
Evidence · text
“Gold leach extraction of 86.0% for the Central composite sample”
bottle roll leachBarsele gold project · goldRecovery: 88.1 %View all detailsHide details
Identity
- Project
- Barsele gold project
- Commodity
- gold
- Region
- sweden
- Reported Region
- Sweden
- Ticker
- GSKR
Test Work
- Program Status
- preliminary
- Test Type
- bottle roll leach
- Sample
- Avan composite sample (gravity tailings)
Recovery
- Recovery
- 88.1 %
- Recovery Basis
- actual_test
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-09-21T00:00:00.000Z
Reasoning: 88.1% leach extraction on tailings is a solid result for a preliminary program.
Positive factors
- Strong leach extraction
Evidence · text
“and 88.1% for the Avan composite sample”
bottle roll leachBarsele gold project · goldView all detailsHide details
Identity
- Project
- Barsele gold project
- Commodity
- gold
- Region
- sweden
- Reported Region
- Sweden
- Ticker
- GSKR
Test Work
- Program Status
- preliminary
- Test Type
- bottle roll leach
- Sample
- Central and Avan composites
Reagents
- Cyanide
- 0.75 kg/t
- Lime
- 0.5 kg/t
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-09-21T00:00:00.000Z
Reasoning: Cyanide consumption of 0.75 kg/t is within acceptable ranges for gold leach.
Positive factors
- Low cyanide consumption
Evidence · text
“Cyanide consumption was approximately 0.75 kg/t and lime consumption was below 0.5 kg/t.”
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.