Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
3.05-3.213.22-3.40
1
7.18
👆🏻
Fracture
Uneven, Subconchoidal, Splintery
Conchoidal
Cleavage
Good on {110}, poor on {100}
1,2 prismatic.
Mohs Hardness
7.55-6
2
10
👆🏻
Chemical Composition
Al 2SiO 5Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
(Ca,Cr)MgSi 2O 6Gemdat.org , Management Team (2012)