molybdenum, vanadium, cobalt, indium, pyrochlore, chromite, dysprosium, moly, praseodymium, vanadium pentoxide, tantalum, nickel alloy, lithium, rare earth, wollastonite, rhenium, ilmenite, zircon, tungsten, uranium, bismuth, spodumene, tellurium, magnetite, lithium oxide, tantalite, wolframite, stibnite, copper, samarium, leucoxene, gallium, rutile, sylvite, molybdenite, fluorspar, pyrope, pegmatite, mineral, feldspar, scheelite, copper oxide, ores, pentoxide, alum shale, oxide, olivine, diopside, nickel, bastnasite, hematite, diamondiferous, haematite, sulfide, carnallite, apatite, covellite, adularia, hypabyssal, spinel, telluride, antimony, eclogite, yttrium, potash, cordierite, eluvial, amphibole, metallogenic, limonite, silicic, argentiferous, kimberlite, amphibolite, chalcocite, salar, allanite, zirconium oxide, columbium, phosphorite, phlogopite, pyrites, zinc, kaolinite, dunite, germanium, beryl, superalloy, trioxide, sulphide, mineralogy, pyrophyllite, zirconium, aluminosilicate, sericite, sodium sulphate, marcasite, corundum, eudialyte, lutetium, detrital, supergene, silicon, titanium, thorium, aluminium, beryllium, chromium, aluminum, magnesium, manganese, ferro, alloyed, boron, plutonium, carbon, chrome

columbite, columbium, niobite

metal, metallic element

atomic number 41, nb