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Australia

Warrawoona Mine

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Australia

Warrawoona Mine

Location: 20 km SE from Marble Bar, Western Australia, Australia

Address:

Corunna Downs Road
Marble Bar
Western Australia, Australia
WA 6760

Contacts:

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Categories

Overview

Mine TypeOpen Pit
StatusCare and Maintenance
Commodities
  • Gold
Mining Method
  • Truck & Shovel / Loader
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Mine Life... Lock
SnapshotThe Warrawoona Gold Project is an operating open pit mining operation with a standalone CIL processing plant which has commissioned in 2022.

On June 28, 2024, Receivers and Managers and Administrators have been appointed to Calidus Resources Limited. Following an urgent assessment of its ongoing operations and development of a realisation strategy, on 5 July 2024, mining activity ceased and operations were transitioned onto care and maintenance.

Owners

SourceSource
CompanyInterestOwnership
Calidus Resources Ltd. 100 % Indirect
Calidus Resources Pty Ltd owns 100% of Keras (Pilbara) Gold Pty Ltd, the registered holder of the tenements of Warrawoona.

On October 10, 2024, Deeds of Company Arrangement from the West Coast group of companies (“West Coast DOCAs”) have now been executed for the Companies.

The Deed Administrators and West Coast group of companies are now working to complete the conditions precedent to the remaining West Coast DOCAs – namely the progression of an application pursuant to section 444GA of the Corporation Act 2001 (Cth) (“Act”) which seeks to provide the DOCA Proponents with 100% of the issued equity in Calidus Resources.

Contractors

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Deposit type

  • Vein / narrow vein

Summary:

The Warrawoona Project leases lie within the Warrawoona Group, one of the oldest greenstone belts within the Pilbara Craton. Composed largely of high-Mg basaltic lavas with lesser tholeiite, andesite, sodic dacite, potassic rhyolite, chert and banded iron formation (BIF), all metamorphosed to greenschist facies, the Warrawoona Group is sandwiched between the Mount Edgar batholith to the north and the Corunna Downs batholith to the south.

Gold occurs in quartz veins and stringers in the Klondyke, Copenhagen and Fieldings Gully Shears and mineralisation is associated with quartz-carbonate-sericite-pyrite alteration. Quartz veins and stringers are generally approximately parallel to the predominant shear direction. The bulk of the gold mineralisation is hosted in strongly sericitised and sheared mafic units with thin chert bands marking probable stratigraphic breaks.

Over some abandoned workings gold mineralisation is associated with copper as indicated by the presence of malachite and other copper carbonates.

The gold mineralisation identified to date at the Klondyke, Fieldings Gully and St George prospects consists of a number of interpreted mineralised lodes striking approximately 1350 and dipping steeply (80°-85°) to the north, Copenhagen has a similar strike but dips less steeply (at 70°) to the north.

Dimensions
At Klondyke (KL), mineralisation has a sub-vertical dip as and ranges from 2m to 20m thick. The resource extends over approximately 5.1 km of strike and extends to a vertical depth of over 500 metres. The St George Trend mineralisation has a sub-vertical dip and ranges from approximately 1 m to 10 m thick with an approximate strike of 1.6 km extending to a vertical depth of approximately 200 m.

The Resource is currently considered open along strike and down dip. Copenhagen Mineral Resources have a strike length of approximately 250 m with a steep southeasterly plunge and a steep northerly dip. Mineralised lodes range from 2m to 10m thick and extend to a vertical depth of 200m. Fieldings Gully mineralisation has a sub-vertical dip and ranges from 2m to 10m thick. The resource extends over approximately 440m of strike and extends to a vertical depth of 140m.

Reserves

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Mining Methods

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Comminution

Crushers and Mills

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Processing

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Production

On June 28, 2024, Receivers and Managers and Administrators have been appointed to Calidus Resources Limited. Following an urgent assessment of its ongoing operations and development of a realisation strategy, on 5 July 2024, mining activity ceased and operations were transitioned onto care and maintenance. Since this time, operations have solely been based on processing ROM and low-grade stockpiles. Processing of remaining ROM stocks and low grade continues at Warrawoona and is planned to continue until the end of 2024.
CommodityUnits202420232022
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All production numbers are expressed as metal in doré.

Operational metrics

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Production Costs

CommodityUnits2023
Credits (by-product) Gold AUD  ....  Subscribe
Total cash costs Gold AUD  ....  Subscribe
All-in sustaining costs (AISC) Gold AUD  ....  Subscribe
** Net of By-Product.

Financials

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Heavy Mobile Equipment

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Personnel

Mine Management

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Oct 14, 2024
....................... Subscription required ....................... Subscription required Subscription required Oct 14, 2024

Aerial view:

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