Tenacity
Brittle
-
Solubility
-
-
Durability
-
-
Specific Gravity
3.20-3.253.05-3.21
1
7.18
👆🏻
Fracture
Uneven, Conchoidal
Uneven, Subconchoidal, Splintery
Cleavage
Good/distinct on [210]
Good on {110}, poor on {100}
Mohs Hardness
5.57.5
2
10
👆🏻
Chemical Composition
Mg 2Si 2O 6Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Al 2SiO 5Michael OâDonoghue , Gems, Sixth edition (2006) More from other references