Mining Intelligence and News

Edna May (Stage 3) Project

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Mine TypeOpen Pit
StatusInactive / Suspended
  • Gold
Mining Method
  • Truck & Shovel / Loader
Mine Life... Lock
SnapshotThe combination of the current Edna May underground resource and the Edna May open Stage 3 pit Scoping Study mining inventory representing potentially significant life extension to the Edna May production centre.

As of December 2023, Pre-Feasibility Study work completed. Project deferred due to market volatility.
Related AssetEdna May Operation


Ramelius Resources Ltd. 100 % Indirect
Edna May open Stage 3 pit is owned 100% by Ramelius Resources Ltd. subsidiary Edna May Operations Pty Ltd.

Deposit type

  • Metamorphic hosted
  • Breccia pipe / Stockwork
  • Vein / narrow vein


The deposit is well understood geologically. The Edna May Gneiss (EMG) is a metamorphosed tonalitic granitoid within a mafic-ultramafic stratigraphy. It hosts the gold mineralisation which occurs as sheeted quartz, minor sulphide veining, generally parallel to strike and less frequent larger quartz lodes/reefs which cross-cut the gneiss with a more northerly strike and westerly dip. The gneiss strikes east-west (100-120°) and dips at 50-60° to the north. It has a strike length of 1,000m, a width of 50–150m and depth extent of at least 700m. Significant background Au anomalism (0.1 - 0.5 g/t) is present, associated with alteration intensity, proximity to veining and micro-fracturing. Visible gold is frequently seen in drill core in close association with veining and gravity recovery is very high for a low-grade deposit at around 50%.

Hosted by the Edna May Gneiss, a metamorphosed granitoid with strike length of 1km, width of 140m and depth extent of 700m and bounded by a maficultramafic stratigraphy. Mineralisation relates to widespread quartz veining, which occurs as thin sheeted foliation parallel or larger cross-cutting reef veins with a polymetallic sulphide assemblage. Mineralisation forms a broad low-grade stockwork throughout the gneiss. Greenfinch deposit very similar.

Edna May gneiss unit is a lenticular body, typically 50-150m thick, 1000m long and defined down-dip to 700m. It strikes east-west and dips N at 50-60°. Internal high-grade quartz reefs occur and strike N-NE and dip 45-50 W. These are generally 100m in length and 2-4m wide.



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Mining Methods


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Crushers and Mills

Milling equipment has not been reported.



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Gold koz 266
All production numbers are expressed as metal in doré.

Operational metrics

Ore tonnes mined, LOM  ....  Subscribe
Tonnes processed, LOM  ....  Subscribe
* According to 2023 study.

Production Costs

All-in sustaining costs (AISC) Gold AUD  ....  Subscribe
Assumed price Gold AUD  ....  Subscribe
* According to 2023 study / presentation.

Project Costs

MetricsUnitsLOM Total
Initial CapEx $M AUD  ......  Subscribe

Heavy Mobile Equipment

Fleet data has not been reported.


Mine Management

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Feb 27, 2024
....................... Subscription required ....................... Subscription required Subscription required Feb 26, 2024
....................... Subscription required ....................... Subscription required Subscription required Feb 27, 2024

Aerial view:


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