Tenacity
Brittle
-
Solubility
-
-
Durability
-
-
Specific Gravity
5.00-5.303.22-3.40
1
7.18
👆🏻
Fracture
Uneven, ConchoidalWalter Schumann, Conchoidal
Conchoidal
Cleavage
None, may show partings on {0001} and {10 1 1}
1,2 prismatic.
Mohs Hardness
65-6
2
10
👆🏻
Chemical Composition
Fe 2O 3Arthur Thomas , Gemstones (2009)
(Ca,Cr)MgSi 2O 6Gemdat.org , Management Team (2012)