Zacatecas Silver Expands Oso Negro to Over 3 Kilometres of Mapped Gold-Silver Veins; Phase Two Rock Chip Sampling Returns up to 20.3 g/t Gold and 3,480 g/t Silver
Original announcement by orestocks on
- Company
- Zacatecas Silver Corp.
- Ticker
- ZAC.V
- Exchange
- Unavailable
- Region
- Sonora, Mexico
- Primary commodity
- Gold
- Secondary commodities
- Silver, Lead, Zinc
- Document categories
- Metallurgy, Drill results, Other
- Extracted
- 2026-09-10 12:01:38 UTC
Analysis by Minestarters Atlas
Minestarters Atlas analysis
Summary
Zacatecas Silver has expanded the mapped vein system at the Oso Negro project in Sonora, Mexico, to over 3 kilometres. Phase Two rock chip sampling returned high-grade intercepts of up to 20.3 g/t gold and 3,480 g/t silver, confirming continuous mineralization along the Prospecto vein.
Reasoning: Phase Two rock chip sampling significantly expanded the mapped vein system and returned high-grade gold and silver intercepts, confirming the potential of an undrilled epithermal target.
Positive factors
- High-grade rock chip intercepts
- System expansion to 3km strike
- Continuous mineralization confirmed
- Drill-ready status
Facts used in scoring: 2
Classification and evidence
Step-Out Extensionpositive
Mineralization extended beyond the previously known limit.
Why it applies: Mapped vein strike length extended from 2km to over 3km.
Evidence · text
“Mapped vein strike length has been extended to over 3 kilometres, up from the 2 kilometres reported after Phase One”
QA/QC Disclosedpositive
Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).
Why it applies: Release mentions use of certified reference materials, blanks, and field duplicates.
Evidence · text
“The Company inserted certified reference materials, blanks and field duplicates into the sample stream”
Mill Routeneutral
Processing via mill or concentrator (CIL, CIP, tank leach, flotation).
Why it applies: the document describes a mill_cil route ("CIP")
Single Domain Onlynegative
Testing limited to one composite or domain — representativeness not established.
Why it applies: only one composite was tested
Extracted facts
Stored fact records: 2. Some facts used in scoring do not have a stored record.
Metallurgical Results (2)
Fact 1Oso Negro · goldView all detailsHide details
Identity
- Project
- Oso Negro
- Commodity
- gold
- Region
- mexico
- Reported Region
- Sonora, Mexico
- Ticker
- ZAC.V
Test Work
- Sample
- Phase Two rock chip grab samples
Lab
- Laboratory
- ALS
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-09-10T00:00:00.000Z
Reasoning: 20.3 g/t gold is a very strong intercept for surface rock chip sampling in an epithermal system.
Positive factors
- High grade for rock chip
Evidence · text
“Phase Two returned individual grab samples grading up to 20.3 g/t gold”
Fact 2Oso Negro · silverView all detailsHide details
Identity
- Project
- Oso Negro
- Commodity
- silver
- Region
- mexico
- Reported Region
- Sonora, Mexico
- Ticker
- ZAC.V
Test Work
- Sample
- Phase Two rock chip grab samples
Lab
- Laboratory
- ALS
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-09-10T00:00:00.000Z
Reasoning: 3,480 g/t silver is an exceptional grade for surface grab samples.
Positive factors
- High grade for rock chip
Evidence · text
“3,480 g/t silver”
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.