General Information:
Chemical Formula:
(Ca,Na)3(Mg,Mn)2(AsO4)3
Composition:
(Molecular Weight = 588.10 gm)
Sodium 2.93 % Na
Calcium 15.33 % Ca
Magnesium 6.20 % Mg
Manganese 4.67 % Mn
Arsenic 38.22 % As
Oxygen 32.65 % O
Empirical Formula:
Ca2.25Na0.75Mg1.5Mn2+0.5(AsO4)3
Physical Properties:
Cleavage:
None
Color:
orange or sulfur yellow.
Density:
4.08
Diaphaniety:
Transparent to Translucent
Hardness:
4.5-5
Luster:
Resinous
Streak:
white
More details...