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Displaying: 1 - 16 16 Records Found
  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
Columbite-(Mn) R040083 Mn2+Nb2O6 University of Arizona Mineral Museum 10964 Mina Miramica, Santa Cruz, Bolivia view
Columbite-(Mn) R050359 Mn2+Nb2O6 University of Arizona Mineral Museum 5452 Black Hills, South Dakota, USA view
Euxenite-(Y) R060856 (Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6 Michael Scott S101012 Betafo, Madagascar view
Euxenite-(Y) R070324 (Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6 James Shigley  Impilahti Parish, Lake Ladoga region, Russia view
Euxenite-(Y) R080101 (Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6 Michael Scott S101012 Betafo, Madagascar view
Fersmite R060717 (Ca,Ce,Na)(Nb,Ta,Ti)2(O,OH,F)6 Michael Scott S101205 Lueshe carbonatite, Kivu Province, Democratic Republic of the Congo view
Ixiolite-(Mn2+) R070289 (Ta2/3Mn2+1/3)O2 Michael Scott S105141 Voroni Tundra, Kola Peninsula, Russia view
Ixiolite-(Mn2+) R070495 (Ta2/3Mn2+1/3)O2 Michael Scott S105768 Alto Ligonha pegmatite, Alto Ligonha District, Zambezia Province, Mozambique view
Scrutinyite R080018 PbO2 William W. Pinch  Snake Pit, lower Mex-Tex mine, Hansonburg District, Socorro County, New Mexico, USA view
Tantalite-(Fe) R070548 Fe2+Ta2O6 James Shigley  Grizzly Bear Gulch, Black Hills, Custer County, South Dakota, USA view
Tantalite-(Mn) R050600 Mn2+Ta2O6 Wayne Thompson  Shengus, Pakistan view
Tantalite-(Mn) R060252 Mn2+Ta2O6 William W. Pinch  Kohtokay mine, Xinjiang Autonomous Region, China view
Tantalite-(Mn) R060415 Mn2+Ta2O6 Herb Obodda 108 Nuristan, Laghman Province, Afghanistan view
Displaying: 1 - 16 16 Records Found
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