Ferrocolumbite Structure Data

Ferrocolumbite Structure Data
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Ferrocolumbite

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Ferrocolumbite_7
Formula: (Fe.264 Mn.07 Nb.633 Ta.033) O2
Name: Ferrocolumbite
Unit cell: 14.2582 5.729 5.0748 90.0 90.0 90.0 , V=414.54
Space group: PBCN (60)

Tarantino S C , Zema M , American Mineralogist , 90 (2005) p.1291-1300, Mixing and ordering behavior in manganocolumbite-ferrocolumbite solid solution:, A single-crystal X-ray diffraction study, Sample: BRA n18 Qm=0.745 from S. Jose de Safira, Minas Gerais, Brazil, Sample: Annealed at T = 650 C for t = 200 m, Note: Occupancies calculated assuming complete Fe/Mn disorder

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