2 Physical Properties
2.1 Tenacity
2.2 Solubility
2.4 Durability
Not Available
Not Available
2.7 Specific Gravity
2.8 Fracture
Conchoidal, Conchoidal, Gemstones of the world (2001) More from other references, Conchoidal, Brittle
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), (e.g. graphite).
2.10 Cleavage
111 (perfect in four directions)
Distinct on {001} and {110}, indistinct on {100}
2.13 Mohs Hardness
2.15 Chemical Composition
C
Pb 2(CO 3)Cl 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references