Tenacity
Sectile
-
Solubility
Soluble
-
Durability
-
-
Specific Gravity
6.133.43-3.44
1
7.18
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Fracture
Conchoidal
-
Cleavage
Distinct on {001} and {110}, indistinct on {100}
None Observed
Mohs Hardness
2-36.5-7
2
10
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Chemical Composition
Pb 2(CO 3)Cl 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Ca 2(Mg,Al) 6(Si,Al,B) 6O 20Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references