Tenacity
-
Brittle
Solubility
-
-
Durability
-
-
Specific Gravity
4.28-4.426.50-7.00
1
7.18
👆🏻
Fracture
Conchoidal
Irregular, Conchoidal
Cleavage
Distinct on [010] and [100] poor on [101]
On {011}, distinct; on {001}, {013}, indistinct
Mohs Hardness
5-5.53
2
10
👆🏻
Chemical Composition
PbCa 3Zn 4(SiO 4) 4Anthony et al , Handbook of mineralogy (2001)
PbMoO 4Walter Schumann , Gemstones of the world (2001)