Tenacity
Flexible
-
Solubility
Soluble
-
Durability
-
-
Specific Gravity
2.20-2.403.23-3.26
1
7.18
👆🏻
Fracture
Conchoidal, Splintery, Fibrous
Conchoidal
Cleavage
Perfect on {010}, distinct on {100}
Perfect on {010} imperfect on {100}
Mohs Hardness
26.5-7
2
10
👆🏻
Chemical Composition
CaSO 4 -2(H 2O)Arthur Thomas , Gemstones (2009)
Mg 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006)