Tenacity
Brittle
-
Solubility
-
-
Durability
-
-
Specific Gravity
6.50-7.003.2-3.4
1
7.18
👆🏻
Fracture
Irregular, Conchoidal
Uneven
Cleavage
On {011}, distinct; on {001}, {013}, indistinct
Perfect on [001] imperfect on [100]
Mohs Hardness
33
2
10
👆🏻
Chemical Composition
PbMoO 4Walter Schumann , Gemstones of the world (2001)
(K,Na) 3(Fe2+ ,Mn) 7Ti 2Si 8O 24(O,OH) 7Anthony et al , Handbook of mineralogy (2001)