Arctic Star Announces Diamond Results for the Arbutus 2022 Kimberlite Discovery at Diagras Project, Lac de Gras, NT
Original announcement by tmx on
- Company
- Arctic Star Exploration Corp.
- Ticker
- ADD
- Exchange
- TSX
- Region
- Northwest Territories
- Primary commodity
- Diamond
- Secondary commodities
- None reported
- Document categories
- Drill results
- Extracted
- 2026-08-21 12:21:03 UTC
Analysis by Minestarters Atlas
Minestarters Atlas analysis
Summary
Arctic Star has announced diamond-positive caustic fusion results from the Arbutus kimberlite at the Diagras Project. The results show 43 stones per 100kg, representing the second-best result to date for the project, with encouraging larger stone counts (>0.3mm).
Reasoning: The Arbutus kimberlite returned a diamond-positive caustic fusion result with a frequency of 43 stones/100kg, showing an encouraging size distribution for an early discovery.
Positive factors
- diamond positive
- unexpected larger number of stones >0.3mm
- second-best result to date
Negative factors
- stones too small to be considered gem
Facts used in scoring: 1
Classification and evidence
QA/QC Disclosedpositive
Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).
Why it applies: The release mentions a chain of custody protocol, SCC accreditation (ISO/IEC 17025), and the use of artificial diamond spikes.
Evidence · text
“A chain of custody protocol was used. ... The Laboratory is SCC accredited, (ISO/IEC 17025).”
Step-Out Extensionpositive
Mineralization extended beyond the previously known limit.
Why it applies: The Arbutus discovery is a new kimberlite identified through drilling in the Diagras project area.
Evidence · text
“Arbutus 2022 Kimberlite Discovery”
Extracted facts
Stored fact records: 1. Some facts used in scoring do not have a stored record.
Drill Results (1)
8/9Diagras · diamondNeeds review: ungroundedView all detailsHide details
Identity
- Hole ID
- 8/9
- Project
- Diagras
- Commodity
- diamond
- Region
- northwest territories
- Reported Region
- Northwest Territories
- Ticker
- ADD
Classification
- Sample Type
- drill
- Group ID
- 8/9:0-143.05
QA/QC
- Laboratory
- Saskatchewan Research Council
- QA/QC Disclosed
- Yes
- Lab Certified
- Yes
- QP Signed
- Yes
- QA/QC Methods
- spiked with distinct artificial diamonds
Review
- Needs Review
- Yes
- Review Reason
- ungrounded
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2022-09-14T00:00:00.000Z
Reasoning: Arbutus kimberlite is diamond positive with 43 stones/100kg and an encouraging size distribution.
Positive factors
- diamond positive
- unexpected larger number of stones >0.3mm
Negative factors
- stones too small to be considered gem
Evidence · text
“Arbutus... 43 [Stones/ 100kg]”
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.