Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
2.54-2.612.34-2.51
1
7.18
👆🏻
Fracture
-
-
Cleavage
Perfect
None
Mohs Hardness
6-9999
2
10
👆🏻
Chemical Composition
KAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
SiO2, Al2O3, FeO, MgO, CaO, K2O, Na2O