Tenacity
-
Brittle
Solubility
-
-
Durability
-
-
Specific Gravity
-99992.51-2.53
1
7.18
👆🏻
Fracture
-
Conchoidal, Splintery
Cleavage
None
None
Mohs Hardness
3-45
2
10
👆🏻
Chemical Composition
Celestite, Andalusite, Feldspar, Dolomite, Gypsum, Halloysite, Kaolinite, Montmorillonite, Sepiolite, Smectite, Vermiculite
KNa 2B 3Si 12O 30Michael OâDonoghue , Gems, Sixth Edition (2006)