- gypsite
- An earthy gypsum (CaSO4·2H2O) variety that contains various quantities (i.e., < 50%) of soil material, silicate clay minerals, and sometimes other salts (e.g. NaCl); found only in arid or semiarid regions as secondary precipitation concentrations or efflorescence associated with rock gypsum or gypsum-bearing strata.SW & GG
Glossary of landform and geologic terms. 2013.