Ahlfeldite ((Ni, Co)SeO3]·2H2O) is a mineral of secondary origin. It is named after Friedrich Ahlfeld (1892–1982), a German-Bolivian mining engineer and geologist. Its type locality is Virgen de Surumi mine, Pakajake Canyon, Chayanta Province, Potosí Department, Bolivia.

Ahlfeldite
Alfredopetrovite, Ahlfeldite, Chalcomenite
General
CategorySelenite mineral
Formula
(repeating unit)
(Ni,Co)SeO3·2H2O
IMA symbolAfe[1]
Strunz classification4.JH.10
Crystal systemMonoclinic
Crystal classPrismatic (2/m)
(same H-M symbol)
Space groupP21/m
Identification
References[2][3][4]

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. ^ "Webmineral.com - Ahlfeldite".
  3. ^ "Mindat.org - Ahlfeldite".
  4. ^ "Handbook of Mineralogy - Ahlfeldite" (PDF). Archived from the original (PDF) on 2015-09-24. Retrieved 2013-01-26.