anhydrite
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About Our Definitions: All forms of a word (noun, verb, etc.) are now displayed on one page.an·hy·drite
noun \-ˌdrīt\Definition of ANHYDRITE
: a mineral consisting of an anhydrous calcium sulfate that is usually massive and white or slightly colored
See Origin of ANHYDRITE
German Anhydrit, from Greek anydros
First Known Use: circa 1823
anhydrite
noun (Concise Encyclopedia)Rock-forming mineral, anhydrous calcium sulfate (CaSO), which differs chemically from gypsum (to which it changes in humid conditions) by having no water of crystallization. Anhydrite occurs most often with salt deposits in association with gypsum, as in the cap rock of the Texas-Louisiana salt domes. Anhydrite is one of the major minerals in evaporite deposits; it is also present in dolomites and limestones, and in ore veins. It is used in plasters and cement as a drying agent.
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