1 Physical Properties
1.2 Tenacity
1.3 Solubility
Not Available
Not Available
1.4 Durability
Not Available
Not Available
1.5 Specific Gravity
1.8 Fracture
Conchoidal, Conchoidal, Brittle, Gems
Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle
1.10 Cleavage
{0110} Indistinct
Perfect on {100}, imperfect on {001}
1.11 Mohs Hardness
1.13 Chemical Composition
SiO2
PbCu(SO 4)(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006)