General Information:
Chemical Formula:
Mn26As+++18O50(OH)4(CO3)
Composition:
(Molecular Weight = 3,704.99 gm)
Manganese 38.55 % Mn
Arsenic 36.40 % As
Hydrogen 0.11 % H
Carbon 0.32 % C
Oxygen 24.61 % O
Empirical Formula:
Mn2+26As18O50(OH)4(CO3)
Physical Properties:
Cleavage:
[0001] Good
Color:
black.
Density:
4.43
Diaphaniety:
Transparent to Opaque
Hardness:
4 - Fluorite
Streak:
brown
More details...