Tenacity
-
-
Solubility
-
-
Durability
-
-
Specific Gravity
3.89-4.18-9999
1
7.18
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Fracture
Conchoidal, Uneven
-
Cleavage
{0001}, {11 2 0} imperfect
None
Mohs Hardness
5.53-4
2
10
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Chemical Composition
Zn 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Celestite, Andalusite, Feldspar, Dolomite, Gypsum, Halloysite, Kaolinite, Montmorillonite, Sepiolite, Smectite, Vermiculite