anhydrite Min.
(ænˈhaɪdraɪt)
[mod. f. Gr. ἄνῡδρ-ος waterless + -ite min. form.; so named by Werner.]
Anhydrous gypsum, or sulphate of lime.
| 1831 Brewster Optics xxx. 252 Augite, Anhydrite, Axinite. 1842 T. Graham Elem. Chem. ii. v. 497 Sulphate of lime occurs in a crystalline form, without water, forming the mineral anhydrite. 1875 Ure Dict. Arts I. 177 Anhydrite is frequently found in beds of rock-salt, where it is often associated with gypsum or hydrous sulphate of lime. |