Tenacity
Flexible
-
Solubility
Soluble
-
Durability
-
-
Specific Gravity
2.20-2.402.60-2.64
1
7.18
👆🏻
Fracture
Conchoidal, Splintery, Fibrous
Uneven, Splintery, Conchoidal
Cleavage
Perfect on {010}, distinct on {100}
Absent
Mohs Hardness
26.5-7
2
10
👆🏻
Chemical Composition
CaSO 4 -2(H 2O)Arthur Thomas , Gemstones (2009)
SiO 2Arthur Thomas , Gemstones (2009)