Tenacity
-
Flexible
Solubility
-
Soluble
Durability
-
-
Specific Gravity
2.9-3.52.20-2.40
1
7.18
👆🏻
Fracture
Conchoidal
Conchoidal, Splintery, Fibrous
Cleavage
{110} Perfect, {???} Distinct, {???} Distinct
Perfect on {010}, distinct on {100}
Mohs Hardness
5.5-62
2
10
👆🏻
Chemical Composition
(Mg,Fe2+ ) 2(Mg,Fe2+ ) 5Si 8O 22(OH) 2Anthony et al , Handbook of mineralogy (2001)
CaSO 4 -2(H 2O)Arthur Thomas , Gemstones (2009)