Tertiary Minerals MD: High-grade zone at Mushima North "holding together very nicely"
Original announcement by proactiveinvestors on
- Company
- Tertiary Minerals PLC
- Ticker
- TYM
- Exchange
- Unavailable
- Region
- Zambia
- Primary commodity
- Silver
- Secondary commodities
- Copper, Bismuth, Antimony
- Document categories
- Drill results
- Extracted
- 2026-09-18 11:51:06 UTC
Analysis by Minestarters Atlas
Atlas analysis published:
Minestarters Atlas analysis
Summary
Tertiary Minerals has reported encouraging drilling results at the Mushima North project in Zambia, including a significant 82m intercept at 107 g/t silver equivalent. The drilling successfully extended the mineralised zone and identified copper grades above 1%, supporting the company's goal of a maiden Mineral Resource by year-end.
Reasoning: The announcement reports a high-grade silver equivalent intercept (107 g/t over 82m) that extends the known zone and includes encouraging copper grades.
Positive factors
- Significant high-grade silver equivalent intercept
- Extension of mineralisation beyond existing exploration target
- Presence of copper and critical minerals
- Successful step-out/infill drilling
Facts used in scoring: 2
Classification and evidence
Step-Out Extensionpositive
Mineralization extended beyond the previously known limit.
Why it applies: The drilling successfully extended the zone beyond the existing Exploration Target boundary.
Evidence · text
“successfully extended the zone”
Infill Drillingneutral
Confirmatory drilling to raise resource confidence, not new discovery.
Why it applies: The programme was designed to provide infill drilling for a Mineral Resource.
Evidence · text
“designed both to provide infill drilling for a Mineral Resource”
Extracted facts
Stored fact records: 2. Some facts used in scoring do not have a stored record.
Drill Results (2)
Fact 1Mushima North · silverGrade: 107Grade Unit: g/tIntercept: 82 mNeeds review: drill_no_hole_idView all detailsHide details
Identity
- Project
- Mushima North
- Commodity
- silver
- Region
- zambia
- Reported Region
- zambia
- Ticker
- TYM
Geometry
- Grade
- 107
- Grade Unit
- g/t
- Intercept
- 82 m
Classification
- Deposit Type
- other
- Program
- mixed
- Sample Type
- drill
- Mining Method
- unknown
Location
- Location
- Discovery Zone
- Loc. Source
- document
QA/QC
- QA/QC Methods
- standards
Deleterious
- Deleterious Flag
- Yes
- Deleterious Elements
- bismuth, antimony
Metal Equivalent
- Metal Eq. Grade
- 107
- Metal Eq. Unit
- g/t silver equivalent
Review
- Needs Review
- Yes
- Review Reason
- drill_no_hole_id
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-09-18T00:00:00.000Z
Reasoning: 82m at 107 g/t AgEq is a strong intercept for silver exploration.
Positive factors
- High grade and significant width
Evidence · text
“intersection of 82 metres at 107 grams per tonne silver equivalent”
Tags used in scoring
No QA/QC Disclosurenegative
Release does not disclose QA/QC — lab certification, CP/QP sign-off and assay protocols cannot be checked from this document.
Why it applies: qaqc_disclosed is not true
Cut-off Undisclosednegative
High-grade interval reported without stating the cut-off grade used for compositing.
Why it applies: no cutoff_grade was stated
Metal Equivalent Opaquenegative
Metal equivalent grade reported without disclosing the price, recovery, or payability assumptions used.
Why it applies: an equivalent grade is reported without its assumptions
Deleterious Elements Presentnegative
Penalty elements (arsenic, antimony, etc.) or refractory concerns noted in the release.
Why it applies: deleterious_flag is true
Infill Drillingneutral
Confirmatory drilling to raise resource confidence, not new discovery.
Why it applies: drill_program_type is "mixed"
Fact 2Mushima North · silverGrade: 191Grade Unit: g/tIntercept: 37 mNeeds review: drill_no_hole_idView all detailsHide details
Identity
- Project
- Mushima North
- Commodity
- silver
- Region
- zambia
- Reported Region
- zambia
- Ticker
- TYM
Geometry
- Grade
- 191
- Grade Unit
- g/t
- Intercept
- 37 m
Classification
- Deposit Type
- other
- Program
- mixed
- Sample Type
- drill
- Mining Method
- unknown
Location
- Location
- Discovery Zone
- Loc. Source
- document
QA/QC
- QA/QC Methods
- standards
Deleterious
- Deleterious Flag
- Yes
- Deleterious Elements
- bismuth, antimony
Metal Equivalent
- Metal Eq. Grade
- 191
- Metal Eq. Unit
- g/t silver equivalent
Review
- Needs Review
- Yes
- Review Reason
- drill_no_hole_id
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-09-18T00:00:00.000Z
Reasoning: 37m at 191 g/t AgEq is a bonanza-style sub-interval.
Positive factors
- High-grade sub-interval
Evidence · text
“including 37 metres at 191 grams per tonne”
Tags used in scoring
No QA/QC Disclosurenegative
Release does not disclose QA/QC — lab certification, CP/QP sign-off and assay protocols cannot be checked from this document.
Why it applies: qaqc_disclosed is not true
Cut-off Undisclosednegative
High-grade interval reported without stating the cut-off grade used for compositing.
Why it applies: no cutoff_grade was stated
Metal Equivalent Opaquenegative
Metal equivalent grade reported without disclosing the price, recovery, or payability assumptions used.
Why it applies: an equivalent grade is reported without its assumptions
Deleterious Elements Presentnegative
Penalty elements (arsenic, antimony, etc.) or refractory concerns noted in the release.
Why it applies: deleterious_flag is true
Infill Drillingneutral
Confirmatory drilling to raise resource confidence, not new discovery.
Why it applies: drill_program_type is "mixed"
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.