Bassanite
Description
A naturally occurring mineral composed of an intermediate hydrate form of calcium sulfate that lies between the dihydrate (Gypsum) and the anhydrous (Anhydrite) states. Synthetic particles of bassanite occur when gypsum is calcined to form Plaster of Paris.
Other Properties
Microscopically similar to gypsum and plaster of Paris
Composition | CaSO4-xH2O |
---|---|
Refractive Index | 1.55, 1.57 |