General Information:
Chemical Formula:
Ca2Cu5Sb(AsO4)4Cl(OH)6·6(H2O)
Composition:
(Molecular Weight = 1,320.90 gm)
Calcium 6.07 % Ca
Copper 24.05 % Cu
Antimony 9.22 % Sb
Arsenic 22.69 % As
Hydrogen 1.37 % H
Chlorine 2.68 % Cl
Oxygen 33.91 % O
Empirical Formula:
Ca2Cu5Sb(AsO4)4Cl(OH)6·6(H2O)
Physical Properties:
Cleavage:
[001] Perfect
Color:
sky blue or turquoise.
Density:
3.2 - 3.3, Average = 3.25
Hardness:
2 - Gypsum
Luster:
Vitreous (Glassy)
Streak:
greenish blue
More details...