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anhydrite

[an-hahy-drahyt] /ænˈhaɪ draɪt/
noun
1.
a mineral, anhydrous calcium sulfate, CaSO 4 , usually occurring in whitish or slightly colored masses.
Origin
1825-1835
1825-35; anhydr- + -ite1
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for anhydrite
  • When magma underneath the mountain cooled and the temperature dropped, the anhydrite began to dissolve.
  • anhydrite was a relatively abundant, primary phenocryst phase.
  • Stratigraphic seals are provided by regionally extensive anhydrite and halite strata.
British Dictionary definitions for anhydrite

anhydrite

/ænˈhaɪdraɪt/
noun
1.
a colourless or greyish-white mineral, found in sedimentary rocks. It is used in the manufacture of cement, fertilizers, and chemicals. Composition: anhydrous calcium sulphate. Formula: CaSO4. Crystal structure: orthorhombic
Word Origin
C19: from anhydr(ous) + -ite1
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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