Tenacity
-
Brittle
Solubility
-
-
Durability
-
-
Specific Gravity
3.22-3.403.69-3.81
1
7.18
👆🏻
Fracture
Conchoidal
Uneven, Conchoidal to uneven, ConchoidalWalter Schumann
Cleavage
Perfect
Distinct on {110}, imperfect on {010}, poor on {001}
Mohs Hardness
5-68.5
2
10
👆🏻
Chemical Composition
(Ca,Mg,Mn)SiO 3Gemdat.org , Management Team (2012)
BeAl 2 O 4