General Information:
Chemical Formula:
Fe+++2(SO4)3
Composition:
(Molecular Weight = 399.88 gm)
Iron 27.93 % Fe
Sulfur 24.06 % S
Oxygen 48.01 % O
Empirical Formula:
Fe3+2(SO4)3
Environment:
As a sublimation product around a coal-gas escape fracture in a coal-bearing formation.
IMA Status:
Approved IMA
Locality:
Ikushunbetsu, Mikasa City, Hokkaido, Japan.
Name Origin:
For its locality.
Physical Properties:
Color:
white or light brown.
Density:
3.06
Diaphaniety:
Transparent
Habits:
Spherical - Spherical, rounded aggregates., ,
Hardness:
2 - Gypsum
Luminescence:
Non-fluorescent.
Luster:
Earthy (Dull)
Streak:
white
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