Tenacity
Sectile
-
Solubility
Soluble
insoluble
Durability
-
-
Specific Gravity
6.132.36
1
7.18
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Fracture
Conchoidal
Uneven, Subconchoidal, Fibrous
Cleavage
Distinct on {001} and {110}, indistinct on {100}
[110] perfect, [101] good, [010] distinct
Mohs Hardness
2-33.5-4
2
10
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Chemical Composition
Pb 2(CO 3)Cl 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Al 3(PO 4) 2(OH,F) 3 · 5H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references