1 Physical Properties
1.1 Tenacity
1.2 Solubility
Soluble
Insoluble in acids
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
1.5 Fracture
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), (e.g. graphite).
Uneven, ConchoidalArthur Thomas, Gemstones (2009)
1.6 Cleavage
Distinct on {001} and {110}, indistinct on {100}
{110} good, 100 moderate, parting on {092} and {011}
1.7 Mohs Hardness
1.8 Chemical Composition
Pb 2(CO 3)Cl 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
TiO 2Michael OâDonoghue , Gems, Sixth Edition (2006)