File:Sylvite-halite-carnallite-polyhalite (Salado Formation, Upper Permian; Southwest Potash Mine, Eddy County, New Mexico, USA) 11.jpg

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English: Evaporite rock from the Permian of New Mexico, USA. (collected in 1958)

Evaporites are chemical sedimentary rocks that form by the evaporation of water and the precipitation of dissolved minerals. Rock salt and rock gypsum are the two most common evaporites. This polymineralic evaporite rock is composed of reddish-colored ferruginous sylvite (KCl - potassium chloride with iron oxide), halite (NaCl - sodium chloride), carnallite (KMgCl3·6H2O - hydrous potassium magnesium chloride), and polyhalite (K2Ca2Mg(SO4)4·2H2O - hydrous potassium calcium magnesium sulfate).

Stratigraphy: Salado Formation, Upper Permian

Locality: Southwest Potash Mine (= Amax Mine; = Horizon Potash Mine), Carlsbad Potash Mining District, Eddy County, New Mexico, USA
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Source https://www.flickr.com/photos/47445767@N05/50575108442/
Author James St. John

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This image was originally posted to Flickr by James St. John at https://flickr.com/photos/47445767@N05/50575108442. It was reviewed on 15 November 2020 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0.

15 November 2020

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current11:53, 15 November 2020Thumbnail for version as of 11:53, 15 November 20203,521 × 3,000 (9.2 MB)Ser Amantio di Nicolao (talk | contribs)Uploaded a work by James St. John from https://www.flickr.com/photos/47445767@N05/50575108442/ with UploadWizard

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