General Information:
Chemical Formula:
(NH4)Fe+++3(SO4)2(OH)6
Composition:
(Molecular Weight = 479.75 gm)
Iron 34.92 % Fe
Hydrogen 2.10 % H
Sulfur 13.37 % S
Nitrogen 2.92 % N
Oxygen 46.69 % O
Empirical Formula:
(NH4)Fe3+3(SO4)2(OH)6
Physical Properties:
Color:
yellow.
Density:
3.02
Diaphaniety:
Transparent
Hardness:
3.5-4.5
Luminescence:
Non-fluorescent.
Luster:
Earthy (Dull)
Streak:
light yellow
More details...