Tenacity
-
Brittle
Solubility
-
-
Durability
-
-
Specific Gravity
3.77-3.933.69-3.81
1
7.18
👆🏻
Fracture
Conchoidal
Uneven, Conchoidal to uneven, ConchoidalWalter Schumann
Cleavage
None
Distinct on {110}, imperfect on {010}, poor on {001}
Mohs Hardness
7-7.58.5
2
10
👆🏻
Chemical Composition
Ca 3Ti4+2(Fe3+2Si)O 12Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
BeAl 2 O 4