1 Physical Properties
1.1 Tenacity
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
1.5 Fracture
Uneven, UnevenAnthony et al, Handbook of mineralogy (2001)
Gems, Sixth Edition (2006), Gems, Sixth Edition (2006)
1.6 Cleavage
[001] perfect; [100] distinct
Not Available
1.7 Mohs Hardness
1.8 Chemical Composition
Pb 5Cu 2(SO 4) 3(CO 3)(OH) 6Anthony et al , Handbook of mineralogy (2001)
SiO 2Michael OâDonoghue , Gems, Sixth Edition (2006)