Onyx hits 13g gold at Munro-Croesus in Ontario
Original announcement by northernminer on
- Company
- Onyx Gold
- Ticker
- ONYX
- Exchange
- Unavailable
- Region
- Ontario
- Primary commodity
- Gold
- Secondary commodities
- None reported
- Document categories
- Drill results
- Extracted
- 2026-08-19 15:12:30 UTC
Analysis by Minestarters Atlas
Minestarters Atlas analysis
Summary
Onyx Gold reported high-grade gold drill results at the Munro-Croesus project in Ontario, highlighted by a 1.7 g/t Au over 67m intercept in hole MC26-340. The hole included a standout 13.2 g/t Au over 6m interval and a 73.4 g/t Au over 1m interval.
Reasoning: The release reports high-grade gold intercepts, including a bonanza-style 1m interval at 73.4 g/t, which significantly exceeds typical thresholds for the region.
Positive factors
- High-grade intercept (73.4 g/t Au)
- Strong continuity in Argus Main zone
- Significant width at high grade (6m @ 13.2 g/t Au)
Facts used in scoring: 5
Classification and evidence
Bonanza Interceptpositive
Exceptionally high-grade zone, well above the deposit-type norm.
Why it applies: 73.4 g/t Au is exceptionally high grade.
Evidence · text
“one-metre interval of 73.4 grams gold”
Extracted facts
Stored fact records: 5. Some facts used in scoring do not have a stored record.
Drill Results (5)
MC26-340Munro-Croesus · goldGrade: 1.7Grade Unit: g/tIntercept: 67 mView all detailsHide details
Identity
- Hole ID
- MC26-340
- Project
- Munro-Croesus
- Commodity
- gold
- Region
- canada_on
- Reported Region
- Ontario
- Ticker
- ONYX
Geometry
- Grade
- 1.7
- Grade Unit
- g/t
- Intercept
- 67 m
- From
- 299 m
- To
- 366 m
Classification
- Sample Type
- drill
- Group ID
- MC26-340:299-366
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-08-19T00:00:00.000Z
Reasoning: A solid 67m intercept at 1.7 g/t Au provides good continuity for the Argus Main zone.
Positive factors
- Significant width at moderate grade
Evidence · text
“MC26-340 in the Argus Main zone cut 1.7 grams gold per tonne over 67 metres from 299 metres depth”
MC26-340Munro-Croesus · goldGrade: 13.2Grade Unit: g/tIntercept: 6 mView all detailsHide details
Identity
- Hole ID
- MC26-340
- Project
- Munro-Croesus
- Commodity
- gold
- Region
- canada_on
- Reported Region
- Ontario
- Ticker
- ONYX
Geometry
- Grade
- 13.2
- Grade Unit
- g/t
- Intercept
- 6 m
- From
- 341 m
- To
- 347 m
Classification
- Sample Type
- drill
- Group ID
- MC26-340:341-347
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-08-19T00:00:00.000Z
Reasoning: 13.2 g/t Au over 6m is a high-grade intersection for this system.
Positive factors
- Strong high-grade intercept
Evidence · text
“including 13.2 grams per tonne gold over 6 metres from about 341 metres downhole”
MC26-340Munro-Croesus · goldGrade: 73.4Grade Unit: g/tIntercept: 1 mView all detailsHide details
Identity
- Hole ID
- MC26-340
- Project
- Munro-Croesus
- Commodity
- gold
- Region
- canada_on
- Reported Region
- Ontario
- Ticker
- ONYX
Geometry
- Grade
- 73.4
- Grade Unit
- g/t
- Intercept
- 1 m
- From
- 342 m
- To
- 343 m
Classification
- Sample Type
- drill
- Group ID
- MC26-340:342-343
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-08-19T00:00:00.000Z
Reasoning: 73.4 g/t Au is an exceptional high-grade interval.
Positive factors
- Bonanza grade intercept
Evidence · text
“one-metre interval of 73.4 grams gold from about 342 metres depth”
MC26-329Munro-Croesus · goldGrade: 1.1Grade Unit: g/tIntercept: 75 mView all detailsHide details
Identity
- Hole ID
- MC26-329
- Project
- Munro-Croesus
- Commodity
- gold
- Region
- canada_on
- Reported Region
- Ontario
- Ticker
- ONYX
Geometry
- Grade
- 1.1
- Grade Unit
- g/t
- Intercept
- 75 m
- From
- 417 m
- To
- 492 m
Classification
- Sample Type
- drill
- Group ID
- MC26-329:417-492
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-08-19T00:00:00.000Z
Reasoning: A wide 75m intercept at 1.1 g/t Au contributes to the mineralized envelope.
Positive factors
- Wide intercept
Evidence · text
“hole MC26-329, which cut 75 metres of 1.1 grams gold from 417 metres downhole”
MC26-329Munro-Croesus · goldGrade: 2.1Grade Unit: g/tIntercept: 21 mView all detailsHide details
Identity
- Hole ID
- MC26-329
- Project
- Munro-Croesus
- Commodity
- gold
- Region
- canada_on
- Reported Region
- Ontario
- Ticker
- ONYX
Geometry
- Grade
- 2.1
- Grade Unit
- g/t
- Intercept
- 21 m
- From
- 461 m
- To
- 482 m
Classification
- Sample Type
- drill
- Group ID
- MC26-329:461-482
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-08-19T00:00:00.000Z
Reasoning: The 21m sub-interval at 2.1 g/t Au is a notable high-grade component of the larger intercept.
Positive factors
- Stronger grade sub-interval
Evidence · text
“That included 21 metres of 2.1 grams gold from 461 metres depth”
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.