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File:Sulfidic calciocarbonatite (copper ore) (Loolekop Pipe, Phalabowra Complex, Paleoproterozoic, 2.06 Ga; mine on Loolekop Pipe, Kaapvaal Craton, South Africa).jpg

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English: Sulfidic calciocarbonatite (copper ore) from the Precambrian of South Africa. (8.6 centimeters across along the base)

Whitish gray = calcite Brassy gold = chalcopyrite Dark gray to black = magnetite Metallic bluish = bornite.

One of the world’s largest copper mines exploits cupriferous carbonatites in the Phalabowra Complex (Palabora Complex) of South Africa. The copper ore sample shown here is a calcite-bearing carbonatite (= calciocarbonatite). It is richly mineralized with iron and copper minerals in the form of oxides and sulfides. The dominant mineral, apart from calcite, is blackish-colored magnetite (Fe3O4). Also present are the copper sulfide minerals chalcopyrite (CuFeS2 - brassy golden-colored), bornite (Cu5FeS4 - metallic purplish-bluish), and apparently cubanite (CuFe2S3).

Unit & age: core of Loolekop Pipe, central Phalabowra Complex, mid-Paleoproterozoic, 2.06 Ga

Locality: copper mine on the Loolekop Pipe, northeastern Kaapvaal Craton, northeastern South Africa
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Source https://www.flickr.com/photos/47445767@N05/14820260134/
Author James St. John

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This file is licensed under the Creative Commons Attribution 2.0 Generic license.
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This image was originally posted to Flickr by James St. John at https://flickr.com/photos/47445767@N05/14820260134. It was reviewed on 11 October 2020 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0.

11 October 2020

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current17:08, 11 October 2020Thumbnail for version as of 17:08, 11 October 20201,093 × 794 (616 KB)Ser Amantio di Nicolao (talk | contribs)Uploaded a work by James St. John from https://www.flickr.com/photos/47445767@N05/14820260134/ with UploadWizard

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