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)
Handbook of mineralogy (2001), Difficult, Fibrous
1.6 Cleavage
[001] perfect; [100] distinct
{???} Good
1.7 Mohs Hardness
1.8 Chemical Composition
Pb 5Cu 2(SO 4) 3(CO 3)(OH) 6Anthony et al , Handbook of mineralogy (2001)
Ca 6Si 6O 17(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)