Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
3.46-3.503.95-4.10
1
7.18
👆🏻
Fracture
Conchoidal
Uneven
Cleavage
Perfect
{110} Perfect, {110} Perfect, {110} Perfect
Mohs Hardness
6-73.5-4
2
10
👆🏻
Chemical Composition
MgAlBO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
(Zn,Fe)SMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references