Tertiary Minerals show more high grade results from Mushima North
Original announcement by proactiveinvestors on
- Company
- Tertiary Minerals PLC
- Ticker
- TYM
- Exchange
- Unavailable
- Region
- Zambia
- Primary commodity
- Silver
- Secondary commodities
- Copper, Zinc
- Document categories
- Drill results, Other
- Extracted
- 2026-09-18 07:33:53 UTC
Analysis by Minestarters Atlas
Minestarters Atlas analysis
Summary
Tertiary Minerals has reported high-grade silver-copper-zinc drill results from the Mushima North project in Zambia, including a 52m intercept at 99 g/t Ag and a 10m intercept at 165 g/t Ag. The results indicate mineralisation is extending beyond previous targets and remains open at depth, with a new shallow copper discovery also noted at the Western Zone.
Reasoning: Strong high-grade intercepts in a known discovery zone and evidence of extension beyond previous boundaries.
Positive factors
- High-grade silver-copper-zinc intercepts reported
- Mineralisation extending beyond current Exploration Target
- New shallow copper discovery at Western Zone
- Mineralisation remains open at depth
Facts used in scoring: 7
Classification and evidence
Step-Out Extensionpositive
Mineralization extended beyond the previously known limit.
Why it applies: Drilling showed mineralisation continuing beyond the current Exploration Target and existing modelled boundary.
Evidence · text
“drilling showing mineralisation continuing beyond the current Exploration Target”
Bonanza Interceptpositive
Exceptionally high-grade zone, well above the deposit-type norm.
Why it applies: 165 g/t silver is exceptionally high for the reported context.
Evidence · text
“165 g/t silver”
Extracted facts
Stored fact records: 7. Some facts used in scoring do not have a stored record.
Drill Results (7)
Fact 1Mushima North · silverGrade: 99Grade Unit: g/tIntercept: 52 mNeeds review: drill_no_hole_idView all detailsHide details
Identity
- Project
- Mushima North
- Commodity
- silver
- Region
- zambia
- Reported Region
- zambia
- Ticker
- TYM
Geometry
- Grade
- 99
- Grade Unit
- g/t
- Intercept
- 52 m
- From
- 39 m
- To
- 91 m
- Intercept Depth
- 39 m
Classification
- Sample Type
- drill
- Group ID
- Mushima_North:39-91
Location
- Location
- Discovery Zone
- Loc. Source
- document
QA/QC
- QA/QC Methods
- standards
Metal Equivalent
- Metal Eq. Grade
- 130
- Metal Eq. Unit
- g/t silver
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: High grade silver intercept over significant width.
Positive factors
- Strong intersection in Discovery Zone
Evidence · text
“52 metres grading 99 grams per tonne silver, 0.41% copper and 0.43% zinc from 39 metres downhole, equivalent to 130 g/t silver”
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. Requires an actual metal equivalent grade; a combined elemental basket such as PGE is not a metal equivalent.
Why it applies: an equivalent grade is reported without its assumptions
Fact 2Mushima North · copperGrade: 0.41Grade Unit: %Intercept: 52 mNeeds review: drill_no_hole_idView all detailsHide details
Identity
- Project
- Mushima North
- Commodity
- copper
- Region
- zambia
- Reported Region
- zambia
- Ticker
- TYM
Geometry
- Grade
- 0.41
- Grade Unit
- %
- Intercept
- 52 m
- From
- 39 m
- To
- 91 m
- Intercept Depth
- 39 m
Classification
- Sample Type
- drill
- Group ID
- Mushima_North:39-91
Location
- Location
- Discovery Zone
- Loc. Source
- document
QA/QC
- QA/QC Methods
- standards
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: Part of a high-grade polymetallic intercept.
Evidence · text
“0.41% copper”
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
Fact 3Mushima North · zincGrade: 0.43Grade Unit: %Intercept: 52 mNeeds review: drill_no_hole_idView all detailsHide details
Identity
- Project
- Mushima North
- Commodity
- zinc
- Region
- zambia
- Reported Region
- zambia
- Ticker
- TYM
Geometry
- Grade
- 0.43
- Grade Unit
- %
- Intercept
- 52 m
- From
- 39 m
- To
- 91 m
- Intercept Depth
- 39 m
Classification
- Sample Type
- drill
- Group ID
- Mushima_North:39-91
Location
- Location
- Discovery Zone
- Loc. Source
- document
QA/QC
- QA/QC Methods
- standards
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: Part of a high-grade polymetallic intercept.
Evidence · text
“0.43% zinc”
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
Fact 4Mushima North · silverGrade: 165Grade Unit: g/tIntercept: 10 mNeeds review: drill_no_hole_idView all detailsHide details
Identity
- Project
- Mushima North
- Commodity
- silver
- Region
- zambia
- Reported Region
- zambia
- Ticker
- TYM
Geometry
- Grade
- 165
- Grade Unit
- g/t
- Intercept
- 10 m
Classification
- Sample Type
- drill
Location
- Location
- Discovery Zone
- Loc. Source
- document
QA/QC
- QA/QC Methods
- standards
Metal Equivalent
- Metal Eq. Grade
- 238
- Metal Eq. Unit
- g/t silver
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: Exceptional silver grade over 10m.
Positive factors
- Very high grade silver
Evidence · text
“10-metre interval returned 1.01% copper, 165 g/t silver and 0.78% zinc, equivalent to 238 g/t silver or 3.97% copper”
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. Requires an actual metal equivalent grade; a combined elemental basket such as PGE is not a metal equivalent.
Why it applies: an equivalent grade is reported without its assumptions
Fact 5Mushima North · copperGrade: 1.01Grade Unit: %Intercept: 10 mNeeds review: drill_no_hole_idView all detailsHide details
Identity
- Project
- Mushima North
- Commodity
- copper
- Region
- zambia
- Reported Region
- zambia
- Ticker
- TYM
Geometry
- Grade
- 1.01
- Grade Unit
- %
- Intercept
- 10 m
Classification
- Sample Type
- drill
Location
- Location
- Discovery Zone
- Loc. Source
- document
QA/QC
- QA/QC Methods
- standards
Metal Equivalent
- Metal Eq. Grade
- 3.97
- Metal Eq. Unit
- % copper
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: Strong copper grade within a high-grade silver interval.
Evidence · text
“1.01% copper”
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. Requires an actual metal equivalent grade; a combined elemental basket such as PGE is not a metal equivalent.
Why it applies: an equivalent grade is reported without its assumptions
Fact 6Mushima North · zincGrade: 0.78Grade Unit: %Intercept: 10 mNeeds review: drill_no_hole_idView all detailsHide details
Identity
- Project
- Mushima North
- Commodity
- zinc
- Region
- zambia
- Reported Region
- zambia
- Ticker
- TYM
Geometry
- Grade
- 0.78
- Grade Unit
- %
- Intercept
- 10 m
Classification
- Sample Type
- drill
Location
- Location
- Discovery Zone
- Loc. Source
- document
QA/QC
- QA/QC Methods
- standards
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: Zinc component of high-grade interval.
Evidence · text
“0.78% zinc”
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
Fact 7Mushima North · copperGrade: 0.38Grade Unit: %Intercept: 25 mNeeds review: drill_no_hole_idView all detailsHide details
Identity
- Project
- Mushima North
- Commodity
- copper
- Region
- zambia
- Reported Region
- zambia
- Ticker
- TYM
Geometry
- Grade
- 0.38
- Grade Unit
- %
- Intercept
- 25 m
- From
- 19 m
- To
- 44 m
- Intercept Depth
- 19 m
Classification
- Sample Type
- drill
- Group ID
- Mushima_North:19-44
Location
- Location
- Western Zone
- Loc. Source
- document
QA/QC
- QA/QC Methods
- standards
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: Preliminary pXRF results for a new discovery; lower confidence than lab assays.
Positive factors
- New shallow discovery
Negative factors
- Preliminary pXRF results
Evidence · text
“preliminary pXRF results included 25 metres at 0.38% copper from 19 metres”
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
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.