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Australia

Rothsay Mine

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Australia

Rothsay Mine

Location: 312 NE from Perth, Western Australia, Australia

Address:

Suite 4, Level 3 South Shore Centre 85 South Perth Esplanade
PO Box 876; South Perth WA 6951
Perth
Western Australia, Australia
6151

Contacts:

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Categories

Summary

Mine TypeUnderground
StatusActive
Commodities
  • Gold
Mining Method
  • Longhole open stoping
Production Start... Lock
Mine Life... Lock
SnapshotThe Rothsay Underground mine is a part of the Deflector Operation.

The Rothsay underground mine is a high-grade satellite ore source, with ore road-hauled approximately 197km to Deflector mine. Rothsay ore has been processed at the Deflector processing plant.

Ore production at Rothsay will increase year-on-year in FY26, reflecting a full year of steady mining following FY25’s contractor transition.
Related AssetDeflector Operation

Owners

SourceSource
CompanyInterestOwnership
Vault Minerals Ltd. 100 % Indirect
The Rothsay mine is indirectly wholly owned by Vault Minerals Limited.

The Vault Minerals Limited has been decided as the new name of the merged Red 5 Limited and Silver Lake Resources Limited following their merger in June 2024. All Silver Lake shares have been transferred to Red 5.

Contractors

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SourceSource

Deposit type

  • Vein / narrow vein

Summary:

The Rothsay Gold Mine is located within the Warriedar Greenstone gold belt, an Archaean sequence of mafic, ultra-mafic, meta-volcanic and sedimentary rocks folded in an anticlinal formation which plunges and strikes to the north-northwest with steeply dipping limbs.

The deposit is hosted in three discrete areas and within five individual shear zones. Woodley’s Shear (formerly A Shear), Woodley’s East and Hydra shears (formerly H Shear) occur to the east of the main Woodley’s Lode, Orient Shear (formerly B Shear) and Clyde and Clyde East Shears (formerly C and D Shears) occur in a second area further west and Miners Shear (formerly E Shear) occurs as an isolated shear in the northwest.

The Woodley Shear is located at the contact between serpentinised peridotite and a porphyritic pyroxenite. Serpentinite forms the hanging wall unit. A sequence of mafic volcanic and sub-volcanic sills forms the hanging wall to the serpentinite.

Woodley’s Shear is characterised by several generations of quartz veining with adjacent tremolite alteration. The early quartz phase is typically blue-black due to the partial replacement of alumina by chromium oxide. The shear zone is typically two to five metres thick, and mineralisation does not typically occur outside the shear zone. The main gold mineralisation is associated with shear-hosted quartz veins of blue and white quartz of up to 3m thickness. The footwall porphyritic dolerite is relatively unaltered, while the hanging wall serpentinite is strongly foliated and has been subject to intense, though patchy tremolite alteration.

Dimensions
The Rothsay resource extents are 1,650m strike, 300m across strike and 550m below surface and open at depth. These extents host all interpreted ore lodes. The lodes vary between 0.1 to 2m in width.

Reserves

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Mining Methods

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Heavy Mobile Equipment

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AV - Autonomous

Comminution

Crushers and Mills

Milling equipment has not been reported.

Processing

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Commodity Production

CommodityProductUnits20252024202320222021
Gold Metal in ore oz  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe
* According to 2019 study.

Operational metrics

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Tonnes processed  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe  ....  Subscribe

Production Costs

Commodity production costs have not been reported.

Personnel

Mine Management

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Nov 16, 2025
....................... Subscription required ....................... Subscription required Subscription required Nov 16, 2025
....................... Subscription required ....................... Subscription required Subscription required Nov 16, 2025

Workforce

Total WorkforceYear
...... Subscription required 2024
...... Subscription required 2023
...... Subscription required 2022
...... Subscription required 2021

Aerial view:

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