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Koongaling vein system, Gregory Ranges District, East Pilbara Shire, Western Australia, Australia

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Latitude & Longitude (WGS84): 21° 4' 40'' South , 121° 7' 40'' East
Latitude & Longitude (decimal): -21.07792,121.12801
GeoHash:G#: qsq0h6fsp
Köppen climate type:BWh : Hot deserts climate


Described as located on the eastern flank of the Gregory and Isabella Ranges, extending north north-west. Ridges are capped by veins of white quartz, across an area of 150 kilometres. It was first discovered by Newcrest in the early 1990's.

The veins are 30 to 50 metres long, up to 100 metres wide. The quartz is banded, crustiform, colloform, breccias and highly irregular stockworks. The quartz contains crystalline forms, amethystine, with disseminated to banded very fine pyrite, and platey calcite replaced by microcrystalline quartz.

While decent quartz specimens appear likely, the writer warns the area is very remote, lacks any access, desert with no water or human habitation within hundreds of kilometres. The world is not lacking in fine quartz specimens, with a cheaper and safer option is buying one from another part of the planet from the comfort of your home.

Due to the extensive coverage of the quartz veins, the Mindat co-ordinates mark the general area, in particular they are sited on Koongaling Hill.



Mineral List


3 valid minerals.

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

Neoarchean
2500 - 2800 Ma



ID: 797946
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]

Paleoarchean
3200 - 3600 Ma



ID: 3192463
Archean volcanic and intrusive rocks

Age: Paleoarchean (3200 - 3600 Ma)

Comments: Pilbara Craton

Lithology: Felsic 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

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Marshall, A.E. (2000), Low-Temperature Low-Pressure (Epithermal) Vein Deposits of the North Pilbara Granite-Greenstone Terrane Western Australia, AGSO, AGSO Record 2000/1, 2000

 
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