Summary:
Deposit is a large-tonnage lowgrade disseminated nickel sulphide deposit hosted by olivine cumulate. Mineralisation extends for more than 2 km along strike and to at least 500 m depth. Mineralisation was discovered in 1968 during drilling of an ultramatic outcrop, and after an interrupted history of geophysical surveys, drilling, and surface mapping, together with several changes of ownership, open-cut mining and milling began in 1994: The ore body occurs in the easternmost of three komatiite units in a west-facing sequence of interbedded volcanic rocks, shale, chert, basalt, volcaniclastic rocks, komatiite, layered gabbro, and highMg and tholeiitic basalt.
The sulphides occur as medium to coarse-grained lobate patches interstitial to olivine (now pseudomorphed), as very fine-grained disseminated blebs in olivine, and as fine grained aggregates in cracks, crosscutting veinlets, and along grain boundaries.
Summary:
Low-grade disseminated sulphide ore is mined from Mt Keith, a large open-pit operation.
Source:
Summary:
Concentration plant with a nominal capacity 11 Mtpa of ore.
Nickel concentrate transported by road to Leinster nickel operations for drying and on-shipping.
Combined production numbers are reported under
Nickel West Operation
Operational Metrics:
Metrics | 2020 | 2019 | 2018 | 2017 | 2016 |
Plant annual capacity
| ......  | ......  | ......  | ......  | 12 Mt of ore |
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Reserves at December 31, 2020:
Category | OreType | Tonnage | Commodity | Grade |
Proven & Probable
|
Stockpiles
|
7.1 Mt
|
Nickel
|
0.58 %
|
Proven & Probable
|
Disseminated
|
84 Mt
|
Nickel
|
0.57 %
|
Measured
|
Disseminated
|
133 Mt
|
Nickel
|
0.54 %
|
Measured
|
Stockpiles
|
7.1 Mt
|
Nickel
|
0.58 %
|
Indicated
|
Disseminated
|
67 Mt
|
Nickel
|
0.52 %
|
Inferred
|
Disseminated
|
24 Mt
|
Nickel
|
0.52 %
|
Corporate Filings & Presentations:
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News:
Aerial view:
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