Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
3.95-4.10-9999
1
7.18
👆🏻
Fracture
Uneven
-
Cleavage
None
None
Mohs Hardness
-99993-4
2
10
👆🏻
Chemical Composition
Al 2O 3Michael OâDonoghue , Gems, Sixth Edition (2006)
Celestite, Andalusite, Feldspar, Dolomite, Gypsum, Halloysite, Kaolinite, Montmorillonite, Sepiolite, Smectite, Vermiculite