Tenacity
-
Flexible
Solubility
-
Soluble
Durability
-
-
Specific Gravity
2.60-3.022.20-2.40
1
7.18
👆🏻
Fracture
-
Conchoidal, Splintery, Fibrous
Cleavage
Perfect
Perfect on {010}, distinct on {100}
Mohs Hardness
-99992
2
10
👆🏻
Chemical Composition
(Mg,Fe2+ ) 5Al(Si 3Al)O 10(OH) 8Anthony et al , Handbook of mineralogy (2001)
CaSO 4 -2(H 2O)Arthur Thomas , Gemstones (2009)