Monument Murchison Gold Project Update
Original announcement by tmx on
- Company
- Monument Mining Limited
- Ticker
- MMY
- Exchange
- TSX
- Region
- Western Australia
- Primary commodity
- Gold
- Secondary commodities
- None reported
- Document categories
- Metallurgy, Other
- Extracted
- 2026-08-23 22:59:10 UTC
Analysis by Minestarters Atlas
Minestarters Atlas analysis
Summary
Monument Mining is implementing a two-phase metallurgical approach at the Murchison Gold Project, utilizing a mill for high-grade material (≥3.5-4.0 g/t Au) and a heap leach facility for low-grade material. The company is also conducting crushing circuit trials and planning an exploration program for 2016 to expand the mineralized footprint.
Reasoning: The company is optimizing its processing flowsheet by implementing a dual-track approach (milling for high-grade, heap leach for low-grade) to improve project economics.
Positive factors
- Two-phase processing approach (milling + heap leach) to maximize recovery
- Planned heap leach start-up by end of 2016
- Potential capital savings from crushing circuit optimization
Negative factors
- Requirement for additional crushing equipment trials
- Need for plant overhaul and mill re-start
Facts used in scoring: 2

Classification and evidence
Mill Routeneutral
Processing via mill or concentrator (CIL, CIP, tank leach, flotation).
Why it applies: The company confirmed a two-phase approach involving milling of higher grade material.
Evidence · text
“involving milling of higher grade and heap leach of low-grade material”
Heap Leach Routeneutral
Processing via heap leach — lower CAPEX and OPEX, lower recovery expected.
Why it applies: The company is constructing a heap leach facility for low-grade material.
Evidence · text
“heap leaching of low-grade material”
QA/QC Disclosedpositive · Story-specific tag
Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).
Why it applies: The release mentions a Qualified Person (Darryl Mapleson) and compliance with NI 43-101/JORC.
Evidence · text
“reviewed and approved by Darryl Mapleson (BSc. (Hons), FAusIMM) who is a qualified Geologist... and is a Qualified Person”
Extracted facts
Stored fact records: 2. Some facts used in scoring do not have a stored record.
Metallurgical Results (2)
Fact 1goldHead Grade: 3.5Head Grade Unit: gptView all detailsHide details
Identity
- Commodity
- gold
- Ticker
- MMY
Test Work
- Sample
- high grade material for process plant
Recovery
- Head Grade
- 3.5
- Head Grade Unit
- gpt
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2015-08-17T00:00:00.000Z
Reasoning: Threshold established for milling to maximize recovery.
Positive factors
- Targeted for optimum recovery via mill
Evidence · text
“material grading approximately 3.5 - 4.0 Au grams per tonne ("gpt") or greater will be treated via the process plant”
Fact 2goldHead Grade: 4Head Grade Unit: gptView all detailsHide details
Identity
- Commodity
- gold
- Ticker
- MMY
Test Work
- Sample
- low grade material for heap leach
Recovery
- Head Grade
- 4
- Head Grade Unit
- gpt
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2015-08-17T00:00:00.000Z
Reasoning: Threshold established for heap leach to capture low-grade value.
Positive factors
- Enables processing of low-grade material via heap leach
Evidence · text
“lower grade material reported to be under 3.5 - 4.0 gpt Au (low grade) will be agglomerated and placed on a heap leach pad”
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.