Tenacity
-
Brittle
Solubility
-
-
Durability
-
-
Specific Gravity
-99992.33-2.37
1
7.18
👆🏻
Fracture
-
ConchoidalWalter Schumann
Cleavage
None
Perfect on {010}, good on {100}
Mohs Hardness
3-47.5
2
10
👆🏻
Chemical Composition
Celestite, Andalusite, Feldspar, Dolomite, Gypsum, Halloysite, Kaolinite, Montmorillonite, Sepiolite, Smectite, Vermiculite
Be 2BO 3(OH)Ulrich Henn and Claudio C.