Tenacity
Flexible
Brittle
Solubility
Soluble
-
Durability
-
-
Specific Gravity
2.20-2.405.9-6.3
1
7.18
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Fracture
Conchoidal, Splintery, Fibrous
Conchoidal, Uneven
Cleavage
Perfect on {010}, distinct on {100}
On {101}, distinct; on {112}, interrupted; on {001}, indistinct
Mohs Hardness
24.5-5
2
10
👆🏻
Chemical Composition
CaSO 4 -2(H 2O)Arthur Thomas , Gemstones (2009)
CaWO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references