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Aplowite

From Wikipedia, the free encyclopedia
Aplowite on a cobaltite crystal
General
CategoryRozenite
Formula
(repeating unit)
(Co,Mn,Ni)SO4 · 4H2O
IMA symbolApw[1]
Crystal systemmonoclinic
Crystal classPrismatic - 2/m
Identification
Colorbright pink, light pink in light
Mohs scale hardness3
LusterVitreous (Glassy)
Streakwhite
Diaphaneitytransparent
Density2.33 g/cm3 (Measured) 2.36 g/cm3 (Calculated)
Optical propertiesBiaxial (–). α = 1.528 β = n.d. γ = 1.536
2V anglen.d.
Solubilitysoluble in water
References[2]

Aplowite is a very rare mineral with the formula CoSO4•4H2O, a naturally occurring cobalt(II) sulfate tetrahydrate. It is the lower hydrate when compared to bieberite (heptahydrate) and moorhouseite (hexahydrate), and a higher hydrate when compared to cobaltkieserite (monohydrate). It occurs together with moorhouseite within efflorescences.[2][3]

References

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  1. ^ Warr, L.N. (2021). "IMA–CNMNC approved mineral symbols". Mineralogical Magazine. 85 (3): 291–320. Bibcode:2021MinM...85..291W. doi:10.1180/mgm.2021.43. S2CID 235729616.
  2. ^ a b Jambor, J. L., and Boyle, R. W., 1984. Moorhouseite and aplowite, new cobalt minerals from Walton, Nova Scotia. Canadian Mineralogist 8, pp. 166-171
  3. ^ "Aplowite: Aplowite mineral information and data". Mindat.org. Retrieved 2016-03-03.