Monarca Minerals Reports Final Drill Hole Assays from Phase 1 Exploration Drilling at San Jose Project - Including Significant Molybdenum & Copper Values

Original announcement by tmx on

Company
Monarca Minerals, Inc.
Ticker
MMN
Exchange
TSX
Region
Mexico
Primary commodity
Copper
Secondary commodities
Molybdenum, Gold, Silver, Lead, Zinc
Document categories
Drill results
Extracted
2026-08-23 22:53:21 UTC

Analysis by Minestarters Atlas

Minestarters Atlas analysis

Summary

Monarca Minerals has released final assay results from its Phase 1 exploration drilling at the San Jose project in Mexico. The results confirm significant copper and molybdenum mineralization, particularly in skarn-related environments, and highlight exploration potential to the west of the current drilling.

Reasoning: The release reports final assays from Phase 1 drilling, confirming significant Cu and Mo mineralization and identifying skarn potential, though true widths are not yet established.

Positive factors

  • significant Cu and Mo mineralization
  • skarn potential identified
  • QA/QC disclosed

Negative factors

  • true widths unknown
  • exploration stage

Facts used in scoring: 22

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 ISO Accredited laboratory, blanks, standards, and duplicates.

Evidence · text

“Procedures have been implemented by Monarca to assure Quality Assurance Quality Control (QAQC) of all assaying that was done at an ISO Accredited laboratory.”

Apparent Width Onlynegative

Interval given as downhole width with no true width or drill orientation — apparent width may overstate true thickness.

Why it applies: Note states true widths are unknown due to insufficient drilling.

Evidence · text

“True widths are unknown at this time due to insufficient drilling.”

Extracted facts

Stored fact records: 22. Some facts used in scoring do not have a stored record.

Drill Results (22)

SJ02San Jose · copperGrade: 1.02Grade Unit: %Intercept: 1.5 mView all details
Link to this fact

Identity

Hole ID
SJ02
Project
San Jose
Commodity
copper
Ticker
MMN

Geometry

Grade
1.02
Grade Unit
%
Intercept
1.5 m

Classification

Sample Type
drill
Group ID
SJ02:null-null

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2021-12-14T00:00:00.000Z

Reasoning: 1.02% Cu over 1.5m is a strong intercept for this deposit type.

Positive factors

  • strong grade for porphyry/skarn
SJ02San Jose · goldGrade: 0.2Grade Unit: g/tIntercept: 1.5 mView all details
Link to this fact

Identity

Hole ID
SJ02
Project
San Jose
Commodity
gold
Ticker
MMN

Geometry

Grade
0.2
Grade Unit
g/t
Intercept
1.5 m

Classification

Sample Type
drill
Group ID
SJ02:null-null

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2021-12-14T00:00:00.000Z

Reasoning: 0.2 g/t Au is relatively low grade.

SJ02San Jose · molybdenumGrade: 0.17Grade Unit: %Intercept: 1.5 mView all details
Link to this fact

Identity

Hole ID
SJ02
Project
San Jose
Commodity
molybdenum
Ticker
MMN

Geometry

Grade
0.17
Grade Unit
%
Intercept
1.5 m

Classification

Sample Type
drill
Group ID
SJ02:null-null

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2021-12-14T00:00:00.000Z

Reasoning: 0.17% Mo is a significant value for this commodity.

Positive factors

  • significant Mo grade
SJ02San Jose · copperGrade: 0.21Grade Unit: %Intercept: 50.3 mView all details
Link to this fact

Identity

Hole ID
SJ02
Project
San Jose
Commodity
copper
Ticker
MMN

Geometry

Grade
0.21
Grade Unit
%
Intercept
50.3 m

Classification

Sample Type
drill
Group ID
SJ02:null-null

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2021-12-14T00:00:00.000Z

Reasoning: 50.3m at 0.21% Cu provides significant tonnage/width.

Positive factors

  • long intercept
SJ02San Jose · goldGrade: 0.02Grade Unit: g/tIntercept: 265.2 mView all details
Link to this fact

Identity

Hole ID
SJ02
Project
San Jose
Commodity
gold
Ticker
MMN

Geometry

Grade
0.02
Grade Unit
g/t
Intercept
265.2 m

Classification

Sample Type
drill
Group ID
SJ02:null-null

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2021-12-14T00:00:00.000Z

Reasoning: 265.2m at 0.02 g/t Au is very low grade.

Negative factors

  • very low grade
SJ04San Jose · goldGrade: 0.01Grade Unit: g/tIntercept: 38.1 mView all details
Link to this fact

Identity

Hole ID
SJ04
Project
San Jose
Commodity
gold
Ticker
MMN

Geometry

Grade
0.01
Grade Unit
g/t
Intercept
38.1 m

Classification

Sample Type
drill
Group ID
SJ04:null-null

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2021-12-14T00:00:00.000Z

Reasoning: 38.1m at 0.01 g/t Au is essentially barren.

Negative factors

  • unsuccessful intercept
SJ05San Jose · copperGrade: 0.94Grade Unit: %Intercept: 4.6 mView all details
Link to this fact

Identity

Hole ID
SJ05
Project
San Jose
Commodity
copper
Ticker
MMN

Geometry

Grade
0.94
Grade Unit
%
Intercept
4.6 m

Classification

Sample Type
drill
Group ID
SJ05:null-null

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2021-12-14T00:00:00.000Z

Reasoning: 0.94% Cu over 4.6m is a strong intercept.

Positive factors

  • strong grade
SJ05San Jose · goldGrade: 0.3Grade Unit: g/tIntercept: 4.6 mView all details
Link to this fact

Identity

Hole ID
SJ05
Project
San Jose
Commodity
gold
Ticker
MMN

Geometry

Grade
0.3
Grade Unit
g/t
Intercept
4.6 m

Classification

Sample Type
drill
Group ID
SJ05:null-null

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2021-12-14T00:00:00.000Z

Reasoning: 0.3 g/t Au is moderate.

SJ05San Jose · copperGrade: 0.21Grade Unit: %Intercept: 1.5 mView all details
Link to this fact

Identity

Hole ID
SJ05
Project
San Jose
Commodity
copper
Ticker
MMN

Geometry

Grade
0.21
Grade Unit
%
Intercept
1.5 m

Classification

Sample Type
drill
Group ID
SJ05:null-null

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2021-12-14T00:00:00.000Z

Reasoning: 1.5m at 0.21% Cu is marginal.

SJ05San Jose · goldGrade: 0.42Grade Unit: g/tIntercept: 1.5 mView all details
Link to this fact

Identity

Hole ID
SJ05
Project
San Jose
Commodity
gold
Ticker
MMN

Geometry

Grade
0.42
Grade Unit
g/t
Intercept
1.5 m

Classification

Sample Type
drill
Group ID
SJ05:null-null

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2021-12-14T00:00:00.000Z

Reasoning: 0.42 g/t Au is moderate.

SJ05San Jose · goldGrade: 0.05Grade Unit: g/tIntercept: 246.9 mView all details
Link to this fact

Identity

Hole ID
SJ05
Project
San Jose
Commodity
gold
Ticker
MMN

Geometry

Grade
0.05
Grade Unit
g/t
Intercept
246.9 m

Classification

Sample Type
drill
Group ID
SJ05:null-null

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2021-12-14T00:00:00.000Z

Reasoning: 246.9m at 0.05 g/t Au is low grade.

Negative factors

  • low grade
SJ05San Jose · copperGrade: 0.3Grade Unit: %Intercept: 68.6 mView all details
Link to this fact

Identity

Hole ID
SJ05
Project
San Jose
Commodity
copper
Ticker
MMN

Geometry

Grade
0.3
Grade Unit
%
Intercept
68.6 m

Classification

Sample Type
drill
Group ID
SJ05:null-null

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2021-12-14T00:00:00.000Z

Reasoning: 68.6m at 0.3% Cu is a significant width.

Positive factors

  • long intercept
SJ06San Jose · copperGrade: 0.94Grade Unit: %Intercept: 1.5 mView all details
Link to this fact

Identity

Hole ID
SJ06
Project
San Jose
Commodity
copper
Ticker
MMN

Geometry

Grade
0.94
Grade Unit
%
Intercept
1.5 m

Classification

Sample Type
drill
Group ID
SJ06:null-null

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2021-12-14T00:00:00.000Z

Reasoning: 0.94% Cu over 1.5m is a strong intercept.

Positive factors

  • strong grade
SJ06San Jose · goldGrade: 0.3Grade Unit: g/tIntercept: 1.5 mView all details
Link to this fact

Identity

Hole ID
SJ06
Project
San Jose
Commodity
gold
Ticker
MMN

Geometry

Grade
0.3
Grade Unit
g/t
Intercept
1.5 m

Classification

Sample Type
drill
Group ID
SJ06:null-null

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2021-12-14T00:00:00.000Z

Reasoning: 0.3 g/t Au is moderate.

SJ06San Jose · goldGrade: 0.03Grade Unit: g/tIntercept: 300.2 mView all details
Link to this fact

Identity

Hole ID
SJ06
Project
San Jose
Commodity
gold
Ticker
MMN

Geometry

Grade
0.03
Grade Unit
g/t
Intercept
300.2 m

Classification

Sample Type
drill
Group ID
SJ06:null-null

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2021-12-14T00:00:00.000Z

Reasoning: 300.2m at 0.03 g/t Au is low grade.

Negative factors

  • low grade
SJ06San Jose · copperGrade: 0.16Grade Unit: %Intercept: 41.1 mView all details
Link to this fact

Identity

Hole ID
SJ06
Project
San Jose
Commodity
copper
Ticker
MMN

Geometry

Grade
0.16
Grade Unit
%
Intercept
41.1 m

Classification

Sample Type
drill
Group ID
SJ06:null-null

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2021-12-14T00:00:00.000Z

Reasoning: 41.1m at 0.16% Cu is moderate.

SJ07San Jose · goldGrade: 0.28Grade Unit: g/tIntercept: 1.5 mView all details
Link to this fact

Identity

Hole ID
SJ07
Project
San Jose
Commodity
gold
Ticker
MMN

Geometry

Grade
0.28
Grade Unit
g/t
Intercept
1.5 m

Classification

Sample Type
drill
Group ID
SJ07:null-null

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2021-12-14T00:00:00.000Z

Reasoning: 0.28 g/t Au is low grade.

SJ07San Jose · molybdenumGrade: 0.22Grade Unit: %Intercept: 1.5 mView all details
Link to this fact

Identity

Hole ID
SJ07
Project
San Jose
Commodity
molybdenum
Ticker
MMN

Geometry

Grade
0.22
Grade Unit
%
Intercept
1.5 m

Classification

Sample Type
drill
Group ID
SJ07:null-null

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2021-12-14T00:00:00.000Z

Reasoning: 0.22% Mo is a significant value.

Positive factors

  • strong Mo grade
SJ07San Jose · goldGrade: 0.02Grade Unit: g/tIntercept: 243.8 mView all details
Link to this fact

Identity

Hole ID
SJ07
Project
San Jose
Commodity
gold
Ticker
MMN

Geometry

Grade
0.02
Grade Unit
g/t
Intercept
243.8 m

Classification

Sample Type
drill
Group ID
SJ07:null-null

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2021-12-14T00:00:00.000Z

Reasoning: 243.8m at 0.02 g/t Au is low grade.

Negative factors

  • low grade
SJ09San Jose · goldGrade: 0.01Grade Unit: g/tIntercept: 266.7 mView all details
Link to this fact

Identity

Hole ID
SJ09
Project
San Jose
Commodity
gold
Ticker
MMN

Geometry

Grade
0.01
Grade Unit
g/t
Intercept
266.7 m

Classification

Sample Type
drill
Group ID
SJ09:null-null

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2021-12-14T00:00:00.000Z

Reasoning: 266.7m at 0.01 g/t Au is very low grade.

Negative factors

  • low grade
SJ09San Jose · zincGrade: 0.2Grade Unit: %Intercept: 24.4 mView all details
Link to this fact

Identity

Hole ID
SJ09
Project
San Jose
Commodity
zinc
Ticker
MMN

Geometry

Grade
0.2
Grade Unit
%
Intercept
24.4 m

Classification

Sample Type
drill
Group ID
SJ09:null-null

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2021-12-14T00:00:00.000Z

Reasoning: 24.4m at 0.2% Zn is marginal.

SJ14San Jose · goldGrade: 0.01Grade Unit: g/tIntercept: 56.4 mView all details
Link to this fact

Identity

Hole ID
SJ14
Project
San Jose
Commodity
gold
Ticker
MMN

Geometry

Grade
0.01
Grade Unit
g/t
Intercept
56.4 m

Classification

Sample Type
drill
Group ID
SJ14:null-null

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2021-12-14T00:00:00.000Z

Reasoning: 56.4m at 0.01 g/t Au is very low grade.

Negative factors

  • low grade

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.