Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
-99993.60-3.61
1
7.18
👆🏻
Fracture
-
Conchoidal
Cleavage
None
Imperfect/fair/absent
Mohs Hardness
3-48-8.5
2
10
👆🏻
Chemical Composition
Celestite, Andalusite, Feldspar, Dolomite, Gypsum, Halloysite, Kaolinite, Montmorillonite, Sepiolite, Smectite, Vermiculite
Mg 3Al 8BeO 16Walter Schumann , Gemstones of the world (2001) More from other references