General Information:
Chemical Formula:
Ca2(Mg,Co)(AsO4)2·2(H2O)
Composition:
(Molecular Weight = 426.99 gm)
Calcium 18.77 % Ca
Magnesium 4.27 % Mg
Cobalt 3.45 % Co
Arsenic 35.09 % As
Hydrogen 0.94 % H
Oxygen 37.47 % O
Empirical Formula:
Ca2Mg0.75Co0.25(AsO4)2·2(H2O)
IMA Status:
Approved IMA
Physical Properties:
Cleavage:
[010] Perfect
Color:
light pink, dark pink, or red.
Density:
3.52
Diaphaniety:
Transparent
Hardness:
3-4 - Calcite-Fluorite
Luster:
Vitreous (Glassy)
Streak:
light pink
More details...