Tenacity
-
Brittle
Solubility
-
-
Durability
-
-
Specific Gravity
4.76-5.036.50-7.00
1
7.18
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Fracture
Conchoidal
Irregular, Conchoidal
Cleavage
None
On {011}, distinct; on {001}, {013}, indistinct
Mohs Hardness
5.5-6.53
2
10
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Chemical Composition
(Mn2+ ,Fe2+ ,Mg)(Fe3+ ,Mn3+ ) 2O 4Anthony et al , Handbook of mineralogy (2001)
PbMoO 4Walter Schumann , Gemstones of the world (2001)