Mineralogy Database

Ahlfeldite Mineral Data

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General Ahlfeldite Information

Help on Chemical  Formula: Chemical Formula: (Ni,Co)SeO3•2(H2O)
Help on Composition: Composition: Molecular Weight = 221.74 gm
   Cobalt     6.64 %  Co    8.45 % CoO
   Nickel    19.85 %  Ni   25.26 % NiO
   Hydrogen   1.82 %  H    16.25 % H2O
   Selenium  35.61 %  Se   50.04 % SeO2
   Oxygen    36.08 %  O
            ______        ______ 
            100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Ni0.75Co0.25(SeO3)•2(H2O)
Help on Environment: Environment: Formed as an alteration product of penroseeite and other selenides.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1935
Help on Locality: Locality: Bolivia, Potos´┐Ż, Colquechaca Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Federico Ahlfeld (1892-192), German-Bolivian geologist and mineralogist who studied Bolivian minerals.
Help on Name Pronunciation: Name Pronunciation: Ahlfeldite + Pronunciation Say AHLFELDITE
Help on Synonym: Synonym: ICSD 69220
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