Tenacity
Brittle
-
Solubility
-
-
Durability
-
-
Specific Gravity
5.00-5.303.84
1
7.18
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Fracture
Uneven, ConchoidalWalter Schumann, Conchoidal
Subconchoidal, Conchoidal
Cleavage
None, may show partings on {0001} and {10 1 1}
{0001} good, {10 1 0} parting
Mohs Hardness
67.5-8
2
10
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Chemical Composition
Fe 2O 3Arthur Thomas , Gemstones (2009)
(Ca,Ce)(Al,Ti,Mg)12O19