Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
3.43-3.443.95-4.10
1
7.18
👆🏻
Fracture
-
Uneven
Cleavage
None Observed
{110} Perfect, {110} Perfect, {110} Perfect
Mohs Hardness
6.5-73.5-4
2
10
👆🏻
Chemical Composition
Ca 2(Mg,Al) 6(Si,Al,B) 6O 20Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
(Zn,Fe)SMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references