Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
2.77-2.88-9999
1
7.18
👆🏻
Fracture
Uneven
-
Cleavage
Perfect basal
None
Mohs Hardness
2.53-4
2
10
👆🏻
Chemical Composition
K(Al,Cr) 3Si 3O 10(OH) 2Gemdat.org , Management Team (2012)
Celestite, Andalusite, Feldspar, Dolomite, Gypsum, Halloysite, Kaolinite, Montmorillonite, Sepiolite, Smectite, Vermiculite