Tenacity
-
Sectile
Solubility
-
Soluble
Durability
-
-
Specific Gravity
-99996.13
1
7.18
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Fracture
-
Conchoidal
Cleavage
None
Distinct on {001} and {110}, indistinct on {100}
Mohs Hardness
3-42-3
2
10
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Chemical Composition
Celestite, Andalusite, Feldspar, Dolomite, Gypsum, Halloysite, Kaolinite, Montmorillonite, Sepiolite, Smectite, Vermiculite
Pb 2(CO 3)Cl 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references