Image: Rock salt Mississippi Potash East Mine, New Mexico

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Description: Rock salt (halitite) (8.3 cm across) - blue & whitish & clear & orangish rock salt (8.3 cm across) from the subsurface Salado Formation of New Mexico. The orangish and bluish coloration is caused by radiation from potassium-40 in nearby potash salts, resulting in excess free sodium metal in the halite. Stratigraphy: McNutt Member (McNutt Potash Member), middle Salado Formation, Ochoan Stage, upper Upper Permian. Locality: Mississippi Potash East Mine, Carlsbad Potash District, Eddy County, southeastern New Mexico, USA.
Title: Rock salt Mississippi Potash East Mine, New Mexico
Credit: Rock salt (Halitite), McNutt Member, middle Salado Formation, Ochoan Stage, upper Upper Permian; Mississippi Potash East Mine, New Mexico, USA
Author: James St. John
Usage Terms: Creative Commons Attribution 2.0
License: CC BY 2.0
License Link: http://creativecommons.org/licenses/by/2.0
Attribution Required?: Yes

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