1 Physical Properties
1.1 Tenacity
1.2 Solubility
Not Available
Not Available
1.1 Durability
Not Available
Not Available
1.3 Specific Gravity
6.50-7.002.65-2.69
1
7.18
1.15 Fracture
Irregular, Brittle, Conchoidal
Uneven, Uneven, Conchoidal, Uneven, Gems, Sixth Edition (2006)
1.16 Cleavage
On {011}, distinct; on {001}, {013}, indistinct
Perfect on {001}, good on {010}
1.17 Mohs Hardness
1.18 Chemical Composition
PbMoO 4Walter Schumann , Gemstones of the world (2001)
(Na,Ca)Al1-2Si3-2O8