General Information:
Chemical Formula:
Ca2Cu8(AsO4)6Cl(OH)·7(H2O) (?)
Composition:
(Molecular Weight = 1,600.61 gm)
Calcium 5.01 % Ca
Copper 31.76 % Cu
Arsenic 28.08 % As
Hydrogen 0.94 % H
Chlorine 2.21 % Cl
Oxygen 31.99 % O
Empirical Formula:
Ca2Cu8(AsO4)6Cl(OH)·7(H2O)
Environment:
Inadequately described mineral. Found in a Russian oxidation zone.
Name Origin:
Named for Aleksei V. Shunikov (1887-1971), crystallographer, Institute of Crystallography, Moscow, Russia.
Physical Properties:
Color:
light blue.
Habits:
Platy - Sheet forms (e.g. micas)., ,
Hardness:
2 - Gypsum
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