1 Physical Properties
1.1 Tenacity
1.2 Solubility
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
1.5 Fracture
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), (e.g. graphite).
Gems, Sixth Edition (2006), Gems, Sixth Edition (2006)
1.6 Cleavage
Distinct on {001} and {110}, indistinct on {100}
Not Available
1.7 Mohs Hardness
1.8 Chemical Composition
Pb 2(CO 3)Cl 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
SiO 2Michael OâDonoghue , Gems, Sixth Edition (2006)