General Information:
Chemical Formula:
Zn3Si4O10(OH)2·4(H2O) (?)
Composition:
(Molecular Weight = 574.58 gm)
Zinc 34.14 % Zn
Silicon 19.55 % Si
Hydrogen 1.75 % H
Oxygen 44.55 % O
Empirical Formula:
Zn3Si4O10(OH)2·4(H2O)
Environment:
Pseudomorphs after diopside in a galena-sphalerite-chalcopyrite skarn. Forms a series with sauconite.
IMA Status:
Approved IMA 1960
Locality:
Batystau, central Kazakhstan.
Name Origin:
Name for the composition (Zinc Silicate).
Physical Properties:
Cleavage:
[001] Perfect
Color:
bluish white, white, or greenish white.
Density:
2.61 - 2.71, Average = 2.66
Diaphaniety:
Translucent to Opaque
Habits:
Earthy - Dull, clay-like texture with no visible crystalline affinities, (e.g. howlite)., ,
Hardness:
1.5-2 - Talc-Gypsum
Luster:
Pearly
Streak:
white
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