• Ahlfeldite - Wikipedia

    en.wikipedia.org/wiki/Ahlfeldite Ahlfeldite ((Ni,Co)[Se O 3]·2H 2 O) 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.. References
  • Ahlfeldite | Article about ahlfeldite by The Free Dictionary

    encyclopedia2.thefreedictionary.com/ahlfeldite Ahlfeldite is rare, occurring on only a few samples as an alteration product of penroseite in crystalline crusts 1 to 1.5 mm thick covering areas of only a few square millimeters or filling small cavities. Ahlfeldite is monoclinic and the crystals are elongated along the c-axis or flattened on {110}.
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  • Mineralienatlas Lexikon - Ahlfeldite (english Version)

    www.mineralienatlas.de/lexikon/index.php/MineralData Mindat - search for: Ahlfeldite Webmineral - search for:Ahlfeldite Handbook-of-Mineralogy - search for: Ahlfeldite RRUFF - Raman, XRD and other mineral data - search for: Ahlfeldite RRUFF - References and PDF downloads - search for: Ahlfeldite American-Mineralogist-Crystal-Structure-Database - search for: Ahlfeldite Athena - search for ...
  • Ahlfeldite: Mineral information, data and localities.

    www.mindat.org/show.php Ahlfeldite: Larranaga A, Mesa J L, Pizarro J L, Pena A, Chapman J P, Arriortua M I, Rojo T (2005) Thermal, spectroscopic and magnetic properties of the CoxNi1-x(SeO3)*2H2O (x = 0, 0.4, 1) phases crystal structure of Co0.4Ni0.6(SeO3)*2H2O Materials Research Bulletin 40 781-793: 2005: synthetic: 0: 293: 0014846: Ahlfeldite
  • Ahlfeldite - RRUFF Database: Raman, X-ray, Infrared, and ...

    rruff.info/Ahlfeldite Sturman B D, Mandarino J A (1974) The ahlfeldite-cobaltomenite series, The Canadian Mineralogist, 12, 304-307 Wildner M (1990) Crystal structure refinements of synthetic cobaltomenite (CoSeO 3 ·2H 2 O) and ahlfeldite (NiSeO 3 ·2H 2 O), Neues Jahrbuch für Mineralogie, Monatshefte, 1990, 353-362
  • Ahlfeldite Mineral Data - webmin.mindat.org

    webmin.mindat.org/data/Ahlfeldite.shtml Ahlfeldite Crystallography: Axial Ratios: a:b:c =0.8595:1:0.734 : Cell Dimensions: a = 7.53, b = 8.76, c = 6.43, Z = 4; beta = 99.083° V = 418.82 Den(Calc)= 3.52
  • Ahlfeldite - Assignment Point

    www.assignmentpoint.com/science/chemistry/ahlfeldite.html Ahlfeldite, formula ((Ni,Co)[SeO3]·2H2O) is a mineral of secondary origin.It’s 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.
  • | e-Rocks Mineral Auctions

    e-rocks.com/item/sky714984/alfredopetrovite-chalcomenite-ahlfeldite El Dragón Mine, Quijarro Province, Potosi Department, Bolivia - White aggregates of the extremely rare new selenium mineral alfredopetrovite (IMA 2015-026)  from the type and only known locality worldwide, the famous mine of El Dragon in Bolivia. The mineral is associated to pink ahlfeldite crystals, blue chalcomenite and metallic krutaite, so 4 rare selenium minerals in a single ...
  • Ahlfeldite NiSe4+O 2H O 3 2 - Handbook of Mineralogy

    www.handbookofmineralogy.com/pdfs/ahlfeldite.pdf Ahlfeldite NiSe4+O3• 2H2O c 2001-2005 Mineral Data Publishing, version 1 Crystal Data: Monoclinic. Point Group: 2/m. Rare crystals, to 1 mm, elongated along [001] or flattened parallel {110}, showing {110}, {011}, {032}, {103}, {101}; in crystalline crusts