Tenacity
Brittle
-
Solubility
Soluble
-
Durability
-
-
Specific Gravity
5.93.05-3.08
1
7.18
👆🏻
Fracture
Sub-Conchoidal
Subconchoidal, Uneven, Conchoidal
Cleavage
None observed
Poor on {100}
Mohs Hardness
35
2
10
👆🏻
Chemical Composition
PbCu(VO4)(OH)
Mn2+ Al(PO 4)(OH) 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)