General Information:
Chemical Formula:
Fe+++2(SO4)2(OH)2·3(H2O)
Composition:
(Molecular Weight = 391.88 gm)
Iron 28.50 % Fe
Hydrogen 2.06 % H
Sulfur 16.37 % S
Oxygen 53.08 % O
Empirical Formula:
Fe3+2(SO4)2(OH)2·3(H2O)
Environment:
Formed rapidly from the dehydration of hohmannite.
Locality:
Chuquicamata, Quetena, and Alcaparrosa, Chile.
Name Origin:
Named after the simlilarity to hohmannite, with a lower state of hydration.
Physical Properties:
Color:
orange.
Habits:
Pulverulent - Forms a loose, poorly-coherent powdery mass., ,
Streak:
light yellow
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