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McCarthy Find (McCarthy's Find; Koorabooka Creek; Kurabuka Creek), Mount Augustus, Upper Gascoyne Shire, Western Australia, Australia

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Latitude & Longitude (WGS84): 24° 5' 5'' South , 116° 43' 59'' East
Latitude & Longitude (decimal): -24.08480,116.73312
GeoHash:G#: qeenbr6ry
Köppen climate type:BWh : Hot deserts climate

Located 1 km south west of Deep Well.

Discovered by Cue prospector D Lambie around 1920. Lambie stated the deposit was silver-lead from a hill of marble, at the side of Kurabuka Creek, 20 kilometres north-east of the junction of the Frederick and Lyons Rivers. Lambie claims he had discovered gold, silver, copper, lead, rubies and other mineral wealth/precious stones. The rubies at least are unlikely and could have been garnets. Two specimens were sent to Perth showing quartz and galena. They were assayed with the first showing 41% lead, 14oz silver and a trace of gold. The second was 44.75% lead, 15oz silver and a trace of gold.

Officially the deposit contains limonite, anglesite, covellite, chrysocolla, malachite, smithsonite, and hydrozincite, with crystalline argentiferous galena, dark iron rich sphalerite, and siderite. This is associated with a east trending 0.6 metres wide shear zone, containing 5-10% galena. Mineralisation is in pods and stringers in joint planes, in the flat lying Irregully Formation dolomite, in the axis of the Woolshed Syncline.

Four small pits and one drive form the historic workings. Explored by Westfield 1961-1967, and Newcrest 1990-1991.

The Mindat co-ordinates are approximate.

Mineral List

13 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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0 - 2.588 Ma

ID: 753390
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]

1000 - 1600 Ma

ID: 3193042
Mesoproterozoic sedimentary rocks

Age: Mesoproterozoic (1000 - 1600 Ma)

Stratigraphic Name: Bangemall Group

Comments: Bangemall Basin

Lithology: Carbonate,shale,sandstone

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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Ferguson, K.M. (1999) Lead, Zinc and Silver Deposits of Western Australia. Geological Survey of Western Australia, Mineral Resources Bulletin 15.
The Western Mail newspaper (Perth) (1920) Lambie's Find. Report by State Mining Engineer (21 Oct 1920).

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