Tenacity
-
-
Solubility
-
insoluble in water
Durability
-
-
Specific Gravity
3.19-3.562.51-2.63
1
7.18
👆🏻
Fracture
Uneven, Conchoidal
Fibrous
Cleavage
{110} Perfect, {010} Indistinct
Perfect basal
Mohs Hardness
5.5-62.5-4.5
2
10
👆🏻
Chemical Composition
(Ca,Na)(Mg,Fe,Al,Ti)(Si,Al) 2O 6Anthony et al , Handbook of mineralogy (2001)
Mg 3(Si 2O 5)(OH) 4Gemdat.org , Management Team (2012)