Cassini Mine

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Mine TypeUnderground
  • Nickel
Mining Method
  • Longhole stoping
  • Longitudinal stoping
  • Avoca
Backfill type ... Lock
Production Start... Lock
SnapshotCassini mine is part of Kambalda Nickel Operations (“KNO”).

First development ore was extracted from the Cassini in March 2022. The successful firing and extraction of the first production stope at the Cassini Nickel Mine in 29 November 2022.

Wyloo will temporarily shut down the Western Australian nickel mines due to low nickel prices. Wyloo will now put the Cassini, Long and Durkin mines into care and maintenance from May 31, 2024.
Related AssetKambalda Nickel Operation


Wyloo Metals Pty Ltd 100 % Indirect
Cassini is 100% owned by Mincor Resources NL.

Mincor Resources NL was removed from the Official List at the close of trading on 25 July 2023 under Listing Rule 17.14, following compulsory acquisition of its remaining securities by Wyloo Consolidated Investments Pty Ltd.

Wyloo Metals’ acquisition of Mincor Resources makes Wyloo a producer of high-grade nickel sulphide from its acquired Cassini and Northern Operations mines.



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Deposit type

  • VMS


Cassini is located on the southern section of the Widgiemooltha Dome. The geology of the Widgiemooltha Dome and the area to the south consists of a thrust repeated sequence of basic ultramafic extrusive and intrusives, with intercalated sediments and acid volcanics with nickel sulphide orebodies found at the base of the ultramafic sequence.

The Cassini orebody as interpreted in the Mineral Resource is split into eight lodes, labelled CS2-CS9. From a mining perspective, the Mineral Resource has been delineated into two main areas based on spatial characteristics. These mining areas have been named by the dominant lode (CS2 or CS4).

The CS2 Area (CS2, CS3, CS6, CS7 and portion of CS5 lodes) consists of east-west trending parallel lodes, mainly offset, dipping at ~45° to the south with thickness from ~1m to ~7m, averaging 3m. The CS2 Area extends from ~260mRL (approx. 50mbs) to ~-240mRL (480m vertical extent). Grades and orebody thickness are inconsistent above ~75mRL.

The CS4 Area (CS4, CS8, CS9 and portion of CS5 Lodes) consists of parallel lodes striking northwest/southeast at ~125° and dipping at ~75-80° to the southwest. Average widths for the CS4, upper CS5 and CS9 lodes are 2-3m, with the CS5 lode thickening to 5-7m and up to 11m in parts below ~-250mRL (grades in this area also increase). The area extends from ~100mRL to -380mRL. Grades and thickness are inconsistent above ~10mRL.



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Mining Methods


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Crushers and Mills

Milling equipment has not been reported.



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CommodityUnitsLOM (Projected)
All production numbers are expressed as metal in concentrate.

Production Costs

Commodity production costs have not been reported.

Heavy Mobile Equipment

Fleet data has not been reported.


Mine Management

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Jan 22, 2024
....................... Subscription required ....................... Subscription required Subscription required Jan 22, 2024
....................... Subscription required ....................... Subscription required Subscription required Jan 22, 2024

Aerial view:


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