1 Physical Properties
1.1 Tenacity
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
3.28-3.445.05-5.22
1
7.18
1.5 Fracture
Uneven, Splintery, Brittle
Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001)
1.6 Cleavage
Perfect on {110}, intersecting at 56° and 124°; partings on {100} and {010}
None
1.7 Mohs Hardness
1.8 Chemical Composition
Not Available
(Zn,Mn2+ ,Fe2+ )(Fe3+ ,Mn3+ ) 2O 4Anthony et al , Handbook of mineralogy (2001)