Tertiary Minerals sees best silver-copper intersection yet at Mushima North project
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
- Extracted
- 2026-09-15 11:50:26 UTC
Analysis by Minestarters Atlas
Minestarters Atlas analysis
Summary
Tertiary Minerals reported its best silver-copper intersection to date at the Mushima North project in Zambia, highlighted by a 121m intercept at 78 g/t silver equivalent. The Phase 4 drilling programme continues to return high-grade near-surface silver-copper-zinc mineralisation, with the latest results suggesting the system remains open at depth.
Reasoning: The announcement reports a significant new high-grade intersection (121m at 78 g/t AgEq) and a project-high silver grade, extending the known mineralised footprint.
Positive factors
- best silver-copper intersection yet
- high-grade silver result of 471 g/t
- system remains open at depth
- near-surface mineralisation
Facts used in scoring: 7
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: Release mentions certified laboratory results.
Evidence · text
“further certified laboratory results expected imminently”
Bonanza Interceptpositive
Exceptionally high-grade zone, well above the deposit-type norm.
Why it applies: Project-high silver result of 471 g/t is exceptionally high.
Evidence · text
“project-high certified silver result of 471 g/t”
Extracted facts
Stored fact records: 7. Some facts used in scoring do not have a stored record.
Drill Results (7)
26TMNRC-053Mushima North · silverGrade: 56Grade Unit: g/tIntercept: 121 mView all detailsHide details
Identity
- Hole ID
- 26TMNRC-053
- Project
- Mushima North
- Commodity
- silver
- Region
- zambia
- Reported Region
- zambia
- Ticker
- TYM
Geometry
- Grade
- 56
- Grade Unit
- g/t
- Intercept
- 121 m
- From
- 4 m
- To
- 125 m
- Intercept Depth
- 4 m
Classification
- Program
- exploration
- Sample Type
- drill
- Group ID
- 26TMNRC-053:4-125
QA/QC
- QA/QC Methods
- standards
Metal Equivalent
- Metal Eq. Grade
- 78
- Metal Eq. Unit
- g/t silver equivalent
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-09-15T00:00:00.000Z
Reasoning: 121m at 56 g/t silver is a very strong intercept for this project.
Positive factors
- best intersection yet
- significant width
Evidence · text
“Hole 26TMNRC-053 returned 121m at 56 g/t silver, 0.26% copper and 0.37% 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
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
26TMNRC-053Mushima North · copperGrade: 0.26Grade Unit: %Intercept: 121 mView all detailsHide details
Identity
- Hole ID
- 26TMNRC-053
- Project
- Mushima North
- Commodity
- copper
- Region
- zambia
- Reported Region
- zambia
- Ticker
- TYM
Geometry
- Grade
- 0.26
- Grade Unit
- %
- Intercept
- 121 m
- From
- 4 m
- To
- 125 m
- Intercept Depth
- 4 m
Classification
- Program
- exploration
- Sample Type
- drill
- Group ID
- 26TMNRC-053:4-125
QA/QC
- QA/QC Methods
- standards
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-09-15T00:00:00.000Z
Reasoning: Copper grade is modest but part of a significant polymetallic intercept.
Positive factors
- part of best intersection
Evidence · text
“0.26% 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
26TMNRC-053Mushima North · zincGrade: 0.37Grade Unit: %Intercept: 121 mView all detailsHide details
Identity
- Hole ID
- 26TMNRC-053
- Project
- Mushima North
- Commodity
- zinc
- Region
- zambia
- Reported Region
- zambia
- Ticker
- TYM
Geometry
- Grade
- 0.37
- Grade Unit
- %
- Intercept
- 121 m
- From
- 4 m
- To
- 125 m
- Intercept Depth
- 4 m
Classification
- Program
- exploration
- Sample Type
- drill
- Group ID
- 26TMNRC-053:4-125
QA/QC
- QA/QC Methods
- standards
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-09-15T00:00:00.000Z
Reasoning: Zinc grade is modest but part of a significant polymetallic intercept.
Positive factors
- part of best intersection
Evidence · text
“0.37% 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
26TMNRC-053Mushima North · silverGrade: 130Grade Unit: g/tIntercept: 52 mView all detailsHide details
Identity
- Hole ID
- 26TMNRC-053
- Project
- Mushima North
- Commodity
- silver
- Region
- zambia
- Reported Region
- zambia
- Ticker
- TYM
Geometry
- Grade
- 130
- Grade Unit
- g/t
- Intercept
- 52 m
Classification
- Program
- exploration
- Sample Type
- drill
- Group ID
- 26TMNRC-053:sub
QA/QC
- QA/QC Methods
- standards
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-09-15T00:00:00.000Z
Reasoning: Strong high-grade silver equivalent sub-interval within the main intercept.
Positive factors
- high-grade sub-interval
Evidence · text
“including 52m at 130 g/t 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
26TMNRC-053Mushima North · silverGrade: 238Grade Unit: g/tIntercept: 10 mView all detailsHide details
Identity
- Hole ID
- 26TMNRC-053
- Project
- Mushima North
- Commodity
- silver
- Region
- zambia
- Reported Region
- zambia
- Ticker
- TYM
Geometry
- Grade
- 238
- Grade Unit
- g/t
- Intercept
- 10 m
Classification
- Program
- exploration
- Sample Type
- drill
- Group ID
- 26TMNRC-053:sub
QA/QC
- QA/QC Methods
- standards
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-09-15T00:00:00.000Z
Reasoning: Very high-grade 10m section.
Positive factors
- higher-grade section
Evidence · text
“higher-grade 10m section at 238 g/t 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
26TMNRC-065Mushima North · silverGrade: 83Grade Unit: g/tIntercept: 51 mView all detailsHide details
Identity
- Hole ID
- 26TMNRC-065
- Project
- Mushima North
- Commodity
- silver
- Region
- zambia
- Reported Region
- zambia
- Ticker
- TYM
Geometry
- Grade
- 83
- Grade Unit
- g/t
- Intercept
- 51 m
- From
- 28 m
- To
- 79 m
- Intercept Depth
- 28 m
Classification
- Program
- exploration
- Sample Type
- drill
- Group ID
- 26TMNRC-065:28-79
QA/QC
- QA/QC Methods
- standards
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-09-15T00:00:00.000Z
Reasoning: Significant silver equivalent intercept.
Positive factors
- strong intercept
Evidence · text
“51m at 83 g/t silver equivalent from 28m in hole 26TMNRC-065”
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
26TMNRC-068Mushima North · silverGrade: 44Grade Unit: g/tIntercept: 60 mView all detailsHide details
Identity
- Hole ID
- 26TMNRC-068
- Project
- Mushima North
- Commodity
- silver
- Region
- zambia
- Reported Region
- zambia
- Ticker
- TYM
Geometry
- Grade
- 44
- Grade Unit
- g/t
- Intercept
- 60 m
- From
- 39 m
- To
- 99 m
- Intercept Depth
- 39 m
Classification
- Program
- exploration
- Sample Type
- drill
- Group ID
- 26TMNRC-068:39-99
QA/QC
- QA/QC Methods
- standards
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-09-15T00:00:00.000Z
Reasoning: Solid width intercept with moderate silver equivalent grade.
Positive factors
- good width
Evidence · text
“60m at 44 g/t silver equivalent from 39m in 26TMNRC-068”
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.