General Information:
Chemical Formula:
Na6(Mn++,Fe++,Mg)2(SO4)(CO3)4
Composition:
(Molecular Weight = 578.33 gm)
Sodium 23.85 % Na
Magnesium 0.84 % Mg
Manganese 11.40 % Mn
Iron 5.79 % Fe
Carbon 8.31 % C
Sulfur 5.54 % S
Oxygen 44.26 % O
Empirical Formula:
Na6Mn2+1.2Fe2+0.6Mg0.2(SO4)(CO3)4
IMA Status:
Approved IMA
Physical Properties:
Cleavage:
None
Color:
brown, white, or pink.
Density:
2.7
Diaphaniety:
Transparent
Hardness:
4 - Fluorite
Luster:
Vitreous - Dull
Streak:
white
More details...