Tenacity
Brittle
-
Solubility
-
-
Durability
-
-
Specific Gravity
2.33-2.37-9999
1
7.18
👆🏻
Fracture
ConchoidalWalter Schumann
-
Cleavage
Perfect on {010}, good on {100}
None
Mohs Hardness
7.53-4
2
10
👆🏻
Chemical Composition
Be 2BO 3(OH)Ulrich Henn and Claudio C.
Celestite, Andalusite, Feldspar, Dolomite, Gypsum, Halloysite, Kaolinite, Montmorillonite, Sepiolite, Smectite, Vermiculite