Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
-99993.89-4.18
1
7.18
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Fracture
-
Conchoidal, Uneven
Cleavage
None
{0001}, {11 2 0} imperfect
Mohs Hardness
3-45.5
2
10
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Chemical Composition
Celestite, Andalusite, Feldspar, Dolomite, Gypsum, Halloysite, Kaolinite, Montmorillonite, Sepiolite, Smectite, Vermiculite
Zn 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references