Tenacity
-
Brittle
Solubility
-
-
Durability
-
-
Specific Gravity
3.805.00-5.30
1
7.18
👆🏻
Fracture
-
Uneven, ConchoidalWalter Schumann, Conchoidal
Cleavage
Indistinct
None, may show partings on {0001} and {10 1 1}
Mohs Hardness
86
2
10
👆🏻
Chemical Composition
(Mg,Fe)Al 2O 4Gemdat.org , Management Team (2012)
Fe 2O 3Arthur Thomas , Gemstones (2009)