Physical Properties
Tenacity
-
Sectile
Solubility
-
-
Durability
-
-
Specific Gravity
2.55-2.572.39
1
7.18
👆🏻
Fracture
Uneven
Irregular
Cleavage
2,1 basal ; 2,1 prismatic ; 3,1 pinacoidal
Perfect on {0001}
Mohs Hardness
6-6.52.5
2
10
👆🏻
Chemical Composition
KAlSi3O8
Mg(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)