General Information:
Chemical Formula:
Zn(OH)2
Composition:
(Molecular Weight = 99.40 gm)
Zinc 65.78 % Zn
Hydrogen 2.03 % H
Oxygen 32.19 % O
Empirical Formula:
Zn(OH)2
Environment:
In a vein in a limestone quarry, on fluorite associated with the polymorphs, sweetite and wulfingite.
IMA Status:
Approved IMA 1986
Locality:
Milltown, near Ashover, Derbyshire, England.
Name Origin:
Named for the locality.
Physical Properties:
Cleavage:
[001] Perfect
Color:
colorless or white.
Density:
3.3
Diaphaniety:
Translucent
Habits:
Platy - Sheet forms (e.g. micas)., ,
Luminescence:
Fluorescent, Short UV=bluish white.
Luster:
Vitreous - Dull
Streak:
white
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