Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
2.54-2.61-9999
1
7.18
👆🏻
Fracture
-
-
Cleavage
Perfect
None
Mohs Hardness
63-4
2
10
👆🏻
Chemical Composition
KAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
Celestite, Andalusite, Feldspar, Dolomite, Gypsum, Halloysite, Kaolinite, Montmorillonite, Sepiolite, Smectite, Vermiculite