Important Update News

The RRUFF Project has been migrated to RRUFF.net. Please update your bookmarks immediately, if you have not done so.

The data on this website is already three years out of date, and the entire website will be taken offline before the end of the year.

We are grateful to NASA for the funding of this effort.

Welcome to the RRUFF Project website containing an integrated database of Raman spectra, X-ray diffraction and chemistry data for minerals.

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  NAMES RRUFF ID IDEAL CHEMISTRY SOURCE LOCALITY OPTIONS
Columbite-(Fe) R050348 Fe2+Nb2O6 California Institute of Technology  Lord Hill mine, Stoneham, Oxford County, Maine, USA view
Columbite-(Fe) R060001 Fe2+Nb2O6 Eric Van Valkenburg  Gypsy mine, Minas Gerais, Brazil view
Columbite-(Fe) R070161 Fe2+Nb2O6 James Shigley  Tveit mine, Iveland, Setesdal Valley, Aust-Agder, Norway view
Displaying: 1 - 3 3 Records Found
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