Legality of Cannabis by U.S. Jurisdiction Minerals containing the chemical element niobium Pages in category "Niobium minerals" The following 41 pages are in this category, out of 41 total. This list may not reflect recent changes. A Achalaite Aeschynite-(Y) Alsakharovite-Zn AspedamiteB Betafite BillwiseiteC Carbokentbrooksite Charleshatchettite Coltan Coltan mining and ethics ColumbiteE Ekplexite Ellsworthite EuxeniteF Feklichevite Fergusonite FerrokentbrooksiteG Georgbarsanovite GolysheviteK KentbrooksiteN Nenadkevichite NioboholtiteO Oneillite Oxyyttropyrochlore-(Y)P Peterandresenite Polycrase PyrochloreR Raslakite RynersoniteS Samarskite-(Y) Schiavinatoite SimpsoniteT Tantalite Tapiolite TaseqiteU UranopolycraseV VigezziteZ Zimbabweite Zircophyllite Zirkelite Zirsilite-(Ce)