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Yannery Hill Copper mine, Karratha, Roebourne Shire, Western Australia, Australia

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Latitude & Longitude (WGS84): 21° 4' 23'' South , 116° 56' 0'' East
Latitude & Longitude (decimal): -21.07332,116.93339
GeoHash:G#: qs70hgsr1
Locality type:Mine
Köppen climate type:BWh : Hot deserts climate

Blatchford 1912 states large copper deposit similar to Whim Creek. Discovered by Kelly and party although no date is mentioned. On the surface was a series of lodes of malachite, being nine lodes running parallel across a 300 foot wide belt. In 1912 only shallow costeaning had taken place, and a shaft down to 32 feet. This was on a lode 7 feet thick containing malachite, cuprite, and unhelpfully 'etc'. Valued at a significant 30% Cu. The lodes strike north-west to south-east, dipping steeply north-east.

Hosted by chloritic schist, weakly pyritic, and a kaolinized oxidised zone, adjacent to the ore horizon. The main workings are in a trough in a syncline, workings following the folds in this syncline. There is an extensive stratabound ore horizon, one metre thick, and 50 metres above the base of the schist. The horizon is massive limonite with malachite, chalcocite, cuprite and quartz.

Intermittent production 1920-1958 of 1132 tonnes of copper ore averaging 21% Cu, then 1951-1968 at 1911.8 tonnes of cupreous ore averaging 12.87% from the oxidised and supergene zone.

Commodity List

This is a list of exploitable or exploited mineral commodities recorded at this locality.

Mineral List

8 valid minerals.

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.

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2500 - 2800 Ma

ID: 694996
Hardey Formation

Age: Neoarchean (2500 - 2800 Ma)

Stratigraphic Name: Hardey Formation

Description: Sandstone, siltstone, shale, lithic wacke, mudstone, arkose, calcareous beds, conglomerate; porphyry, porphyry breccia; quartzite; dacitic to rhyolitic lavas; quartz-feldspar-mica schist; boulder breccia; basalt; felsic pyroclastics, ultramafic lava.

Comments: sedimentary; igneous volcanic; synthesis of multiple published descriptions

Lithology: Sedimentary; igneous volcanic

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: 3191737
Archean volcanic and intrusive rocks

Age: Archean (2500 - 3200 Ma)

Comments: Pilbara Craton

Lithology: 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, used under Creative Commons Attribution 4.0 License

This page contains all mineral locality references listed on 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 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.


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Marston, R.J.(1979): Copper Mineralisation in Western Australia, Geological Survey of Western Australia (1979)
Blatchford, T. (1912), Mineral Resources of the North West Division. Investigations in 1912, Geological Society of Western Australia, State Government of Western Australia, Bulletin 52, 1912

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