Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
-99993.95-4.10
1
7.18
👆🏻
Fracture
-
Uneven
Cleavage
-
{110} Perfect, {110} Perfect, {110} Perfect
Mohs Hardness
-99993.5-4
2
10
👆🏻
Chemical Composition
SiO2, Al2O3, CaO, MgO, FeO
(Zn,Fe)SMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references