Tenacity
-
Brittle
Solubility
-
-
Durability
-
-
Specific Gravity
3.63-3.93.87-4.14
1
7.18
👆🏻
Fracture
Conchoidal, Uneven
Subconchoidal, Conchoidal
Cleavage
Indistinct
Poor on {120}, in traces on {001}
Mohs Hardness
7.5-85.5-6
2
10
👆🏻
Chemical Composition
(Mg,Fe2+ )Al 2O 4Gemdat.org , Management Team (2012) More from other references
TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references