terms:anhydrite
The common name for the naturally occurring calcium sulfate. Anhydrite is calcium sulfate (CaSO4 ) existing in the orthorhombic crystalline form. The anhydrite crystal cannot become a gypsum crystal (monoclinic form) in a single hydration step. Anhydrite must first become dissociated in solution before it can crystallize as gypsum (or recrystallize as anhydrite). Compare gypsum.
terms/anhydrite.txt · Last modified: 2023/11/22 08:39 by 127.0.0.1