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Mount Clifford Ni deposit, Ten Mile Outcamp, Leonora Shire, Western Australia, Australia

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Latitude & Longitude (WGS84): 28° 29' 44'' South , 121° 4' 48'' East
Latitude & Longitude (decimal): -28.49573,121.08008
GeoHash:G#: qdyjghxb6
Locality type:Deposit
Köppen climate type:BWh : Hot deserts climate


Located 54 km NNW of Leonora.

In the same region as the Perseverence, Mt Keith and other nickel mines between Leonora and Wiluna. The prospect has only been drilled so far (2013), but should mining take place is likely to throw up some interesting nickel related species.

The deposit contains several stratabound lenses of disseminated sulphides, grading at 1.5 to 2.0% Ni, in serpentinised peridotite. Nickel is represented by godlevskite, millerite, heazlewoodite, and pentlandite. There are irregular veins of oxide sulphide and in this is found grains and aggregates of native nickel, all in a serpentinised skeletal textured peridotite. The veins have a core of nickeloan magnetite grading to a rim of ferroan trevorite, a rare spinel species. The spinel is found intergrown with native nickel and heazlewoodite. There is also minor chalcopyrite, bornite, maucherite, and an un-named species close to Ni4S (Sn, Te, Sb) in composition.

The secondary sulphides have developed from weathering and/or low temperature hydrothermal alteration processes. Through this process pentlandite has been replaced by violarite-polydymite and millerite. Godlevskite has been replaced by millerite, heazlewoodite replaced by goldslevskite, in turn replaced by millerite.

Carbonate bearing solutions caused the alteration of the exiting native nickel and heazlewoodite, to an assemblage of native copper, nickel-iron carbonates, nickel and nickel iron hydroxycarbonates and nickel rich silicates. Native nickel-heazelwoodite-ferroan trevorite assemblage has crystallised in hydrothermal solutions containing high Ni and low sulfur, with oxygen, made the nickel iron sulfates and nickel iron alloys unstable, relative to the nickel iron oxides, nickel sulfates, and native nickel.

In 2009 platinum and palladium minerals were found at the base of the 1000 metre thick Komatiite dunite host. The host body is strongly serpentinised olivine adcumulate with accessory chromite. The platinum and palladium is closely associated with the base metal sulfides, but are found in a layer showing little disseminated sulphides.

Exploration markings, and maps indicate the co-ordinates are in the vicinity of the prospect. The line of old shafts 2 kilometres to the south-west is an old gold location called Victory.



Mineral List


15 valid minerals. 1 (FRL) - first recorded locality of unapproved mineral/variety/etc.

Rock Types Recorded

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Regional Geology

This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.

Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org

Quaternary
0 - 2.588 Ma



ID: 713070
colluvium 38491

Age: Pleistocene (0 - 2.588 Ma)

Description: Colluvium and/or residual deposits, sheetwash, talus, scree; boulder, gravel, sand; may include minor alluvial or sand plain deposits, local calcrete and reworked laterite

Comments: regolith; synthesis of multiple published descriptions

Lithology: Regolith

Reference: Raymond, O.L., Liu, S., Gallagher, R., Zhang, W., Highet, L.M. Surface Geology of Australia 1:1 million scale dataset 2012 edition. Commonwealth of Australia (Geoscience Australia). [5]

Neoarchean - Mesoarchean
2500 - 3200 Ma



ID: 3188638
Archean volcanic and intrusive rocks

Age: Archean (2500 - 3200 Ma)

Comments: Yilgarn Craton

Lithology: Greenstone belt; mafic-ultramafic volcanic rocks

Reference: Chorlton, L.B. Generalized geology of the world: bedrock domains and major faults in GIS format: a small-scale world geology map with an extended geological attribute database. doi: 10.4095/223767. Geological Survey of Canada, Open File 5529. [154]

Data and map coding provided by Macrostrat.org, used under Creative Commons Attribution 4.0 License



This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.

References

Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Hudson, D.R., Travis, G.A.(1981): A Native Nickel-Heazlewoodite-Ferroan Trevorite Assemblage from Mt Clifford Western Australia, Economic Geology (1981):1686-1697
Fiorentini, M., Barnes, S.J., Pearson, N.J., Locmeles, M.(2009): Anomalous Sulfur Poor Platinum Group Elements Mineralisation in Komatiite Accuulates Mt Clifford Western Australia, Economic Geology (2009):104: 841-855

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