Allanpringite
Phosphate mineral
(repeating unit)(same H-M symbol)
c = 17.83 [Å]; β = 92.19°; Z = 4
nβ = 1.675
nγ = 1.747
Allanpringite is a phosphate mineral named after Australian mineralogist Allan Pring of the South Australian Museum. Allanpringite is a Fe3+ analogue Al-phosphate mineral wavellite, but it has a different crystal symmetry – monoclinic instead of orthorhombic in wavellite. It forms needle-like crystals, which are always twinned and form parallel bundles up to about 2 mm long. They are often found in association with other iron phosphates in abandoned iron mines.[2][4]
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 Allanpringite. Mindat
- ^ Allanpringite. Webmineral
- ^ Kolitsch, U., Bernhardt, H.J., Lengauer, C.L., Blass, G., and Tillmanns, E., 2006. Allanpringite, Fe3(PO4)2(OH)3·5H2O, a new ferric iron phosphate from Germany, and its close relation to wavellite. European Journal of Mineralogy 18, 793-801
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Phosphate minerals
- Allanpringite
- Beraunite
- Brazilianite
- Eosphorite
- Fluorapatite
- Hydroxyapatite
- Lithiophilite
- Metatorbernite
- Monazite
- Struvite
- Taranakite
- Variscite
- Wavellite
- Xenotime
- Wycheproofite
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