General Information:
Chemical Formula:
(Zn,Mg,Mn)Fe+++(SO4)2(OH)·7(H2O)
Composition:
(Molecular Weight = 443.11 gm)
Magnesium 1.65 % Mg
Manganese 1.24 % Mn
Zinc 8.85 % Zn
Iron 12.60 % Fe
Hydrogen 3.41 % H
Sulfur 14.47 % S
Oxygen 57.77 % O
Empirical Formula:
Zn0.6Mg0.3Mn2+0.1Fe3+(SO4)2(OH)·7(H2O)
IMA Status:
Approved IMA 1964
Physical Properties:
Color:
orange red.
Density:
2.201
Diaphaniety:
Transparent to Translucent
Hardness:
2.5 - Finger Nail
Luster:
Vitreous - Greasy
Streak:
light yellow
More details...