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Formula: Co(SO4).4H2O
Hydrated normal sulphate of cobalt,
rozenite group
Crystal System: Monoclinic
Specific gravity: 2.33 measured, 2.36 calculated
Hardness: 3
Streak: White
Colour: Bright pink
Solubility: Water soluble
Common impurities: Mn,Ni
Environments
Localities
The type locality, the Walton baryte mine, Walton, Hants county, Nova Scotia, Canada, is the largest producer of
baryte in Canada and in addition has an associated high-grade
lead-zinc-copper-silver
orebody.
Aplowite and moorhouseite occur together as closely associated
water soluble patchy efflorescences on a 2" X 4" X 8" specimen containing various sulphides in a
baryte-siderite matrix. Colloform
cobalt- and nickel- bearing
pyrite occurs abundantly here and is the most probable source of the
supergene cobalt
sulphates
(CM 8.166-171).
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