Nickelblödite
(repeating unit)Na2Ni(SO4)2·4H2O IMA symbol Nblö[1] Strunz classification 7.CC.50 Dana classification 29.3.3.2 Crystal system Monoclinic Crystal class Prismatic (2/m)
(same H-M symbol) Space group P21/a Unit cell a = 10.87, b = 8.07
c = 5.46 [Å]; β = 100.43°; Z = 2 Identification Color Pale yellowish-green to pale green Crystal habit Flat crystallites Diaphaneity Translucent Specific gravity 2.43 (calculated) Optical properties Biaxal (-) Refractive index nα=1.50-1.51, nβ=1.51-1.52, nγ=1.51-1.52 (approximated) Common impurities Mg, Fe References [2][3][4]
(same H-M symbol)
c = 5.46 [Å]; β = 100.43°; Z = 2
Nickelblödite is a rare nickel sulfate mineral with the formula Na2Ni(SO4)2·4H2O.[2][4] Nickelblödite was discovered in nickel mines in Carr Boyd Rocks and Kambalda, Western Australia.[2] The mineral is a nickel-analogue of blödite, changoite, cobaltoblödite and manganoblödite - other representatives of the blödite group.[4]
Nickelblödite contains small admixtures of magnesium and iron.[3]
Minerals associating with nickelblödite include violarite, morenosite, halite, pyrite, and siderite.[3]
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.
- ^ a b c Nickel, E.W., and Bridge, P.J., 1977. Nickelblödite, Na2Ni(SO4)2·4H2O, a new mineral from Western Australia. Mineralogical Magazine 41, 37-41
- ^ a b c "Nickelblödite - Handbook of Mineralogy" (PDF). Handbookofmineralogy.org. Retrieved 2016-03-11.
- ^ a b c "Nickelblödite: Nickelblödite mineral information and data". Mindat.org. Retrieved 2016-03-11.
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