Mineralogy Database

Anhydrite Mineral Data

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General Anhydrite Information

Help on Chemical  Formula: Chemical Formula: CaSO4
Help on Composition: Composition: Molecular Weight = 136.14 gm
   Calcium  29.44 %  Ca   41.19 % CaO
   Sulfur   23.55 %  S    58.81 % SO3
   Oxygen   47.01 %  O
           ______        ______ 
           100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Ca(SO4)
Help on Environment: Environment: Sedimentary beds, gangue in ore veins, and in traprock zeolite occurrences.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1795
Help on Locality: Locality: World wide occurrences where marine evaporite beds occur. Often interbedded with halite. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: From the Greek anhydros, meaning "waterless" (In contrast to Gypsum, which contains water).
Help on Name Pronunciation: Name Pronunciation: Anhydrite + Pronunciation Say ANHYDRITE
Help on Synonym: Synonym: Calcium Sulfate
  ICSD 16382
  PDF 37-1496