Moorhouseite
(repeating unit)CoSO4•6H2O IMA symbol Mh[1] Strunz classification 7.CB.25 Crystal system Monoclinic Crystal class Prismatic (2/m)
(same H-M symbol) Space group C2/c Unit cell a = 10.03, b = 7.23,
c = 24.26 [Å], β=98.37o (approximated); Z = 8 Identification Color Pink Crystal habit granular; in crusts and efflorescences Fracture Conchoidal Mohs scale hardness 2.5 Luster Vitreous Streak White Density 1.97-2.02 (measured) Common impurities Ni, Mn, Cu, Fe References [2][3][4][5]
(same H-M symbol)
c = 24.26 [Å], β=98.37o (approximated); Z = 8
Moorhouseite is a rare mineral with the formula CoSO4•6H2O, a naturally occurring cobalt(II) sulfate hexahydrate. It is the lower-hydrate-equivalent of bieberite (heptahydrate) and aplowite (hexahydrate). It is also hydrated equivalent of cobaltkieserite. It occurs together with moorhouseite within efflorescences found in the Magnet Cove Barium Corporation mine in Walton, Nova Scotia, Canada.[6][7]
Notes on chemistry
Relatively high amounts of nickel and manganese were reported, with trace amounts of copper and iron.[8]
Crystal structure
Analysis of synthetic analogue of moorhouseite revealed, that its structure may be described as containing:[9]
- Co(H2O)6 octahedra, forming alternate layers
- SO4 tetrahedra
- hydrogen bonds (two per a single water molecule)
References
- ^ 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.
- ^ Mineralienatlas
- ^ Jambor, J.L., and Boyle, R.W., 1984. Moorhouseite and aplowite, new cobalt minerals from Walton, Nova Scotia. Canadian Mineralogist 8, 166-171
- ^ "Moorhouseite" (PDF). Handbookofmineralogy.org. Retrieved 2016-03-10.
- ^ "Moorhouseite: Moorhouseite mineral information and data". Mindat.org. Retrieved 2016-03-03.
- ^ Jambor, J.L., and Boyle, R.W., 1984. Moorhouseite and aplowite, new cobalt minerals from Walton, Nova Scotia. Canadian Mineralogist 8, 166-171
- ^ "Moorhouseite: Moorhouseite mineral information and data". Mindat.org. Retrieved 2016-03-03.
- ^ Jambor, J.L., and Boyle, R.W., 1984. Moorhouseite and aplowite, new cobalt minerals from Walton, Nova Scotia. Canadian Mineralogist 8, 166-171
- ^ Elerman, Y., 1988. Refinement of the crystal structure of CoSO4.6H2O. Acta Crystallographica C44, 599-601
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