- a mineral, anhydrous calcium sulfate, CaSO4, usually occurring in whitish or slightly colored masses.
Origin of anhydrite
Examples from the Web for anhydrite
Historical Examples of anhydrite
Anhydrite, anhydrous sulphate of calcium, a mineral presenting several varieties of structure and colour.
These observations appear to show that the change to anhydrite is a very gradual process at temperatures below a red heat.
Anhydrite (CaSO4) also occurs in rock masses, and is often associated with rock salt.A Textbook of Assaying: For the Use of Those Connected with Mines.
Cornelius Beringer and John Jacob Beringer
Conversely gypsum may, under certain conditions, be dehydrated or reduced to anhydrite.
- 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: CaSO 4 . Crystal structure: orthorhombic