Tenacity
Brittle
-
Solubility
-
-
Durability
-
-
Specific Gravity
5.00-5.302.74-2.76
1
7.18
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Fracture
Uneven, ConchoidalWalter Schumann, Conchoidal
Uneven
Cleavage
None, may show partings on {0001} and {10 1 1}
{010} Perfect, {001} Distinct
Mohs Hardness
63.5-4
2
10
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Chemical Composition
Fe 2O 3Arthur Thomas , Gemstones (2009)
Fe3+ PO 4 · 2H 2OAnthony et al , Handbook of Mineralogy (2001)