Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
-99993.25
1
7.18
👆🏻
Fracture
-
-
Cleavage
-
Imperfect in one direction
Mohs Hardness
-99995-5.5
2
10
👆🏻
Chemical Composition
SiO2, Al2O3, CaO, MgO, FeO
CaCuAlSi 2O 6(OH) 3Michael OâDonoghue , Gems, Sixth Edition (2006)