tantalite

noun 0.767

coltan

noun 0.742

niobium

noun 0.668

wolframite

noun 0.646

cassiterite

noun 0.645

niobate

noun 0.645

bastnaesite

noun 0.641

tantalum

noun 0.638

tantalate

noun 0.628

cobaltite

noun 0.593

tourmaline

noun 0.585

ilmenite

noun 0.579

chromite

noun 0.575

rutile

noun 0.572

tungsten

noun 0.570

xenotime

noun 0.567

titanate

noun 0.565

monazite

noun 0.561

clinozoisite

noun 0.560

titanite

noun 0.557

pitchblende

noun 0.556

columbine

noun 0.555

pyrochlore

noun 0.552

troctolite

noun 0.551

allanite

noun 0.548

pentlandite

noun 0.547

stannite

noun 0.544

eclogite

noun 0.541

colemanite

noun 0.541

smithsonite

noun 0.537

coffinite

noun 0.536

cobalt

noun 0.535

spodumene

noun 0.534

scheelite

noun 0.534

molybdenite

noun 0.533

titanium

noun 0.532

anatase

noun 0.531

titanocene

noun 0.529

carbonatite

noun 0.529

columbarium

noun 0.528

tungsten carbide

noun 0.526

cummingtonite

noun 0.525

titanium oxide

noun 0.524

pollucite

noun 0.524

natrolite

noun 0.523

scapolite

noun 0.522

collier

noun 0.520

leucoxene

noun 0.519

biotite

noun 0.518

copper ore

noun 0.518

lithium tantalate

noun 0.518

carnotite

noun 0.518

spinel

noun 0.515

columella

noun 0.514

zoisite

noun 0.514

titanium carbide

noun 0.513

titanium nitride

noun 0.513

chromitite

noun 0.513

terbium

noun 0.513

tungstate

noun 0.511

tanzanite

noun 0.510

catlinite

noun 0.510

molybdenum

noun 0.509

tetrahedrite

noun 0.509

bronzite

noun 0.508

nickel

noun 0.507

bauxite

noun 0.506

magnetite

noun 0.506

nanotube

noun 0.505

carbon nanotube

noun 0.505

titanium alloy

noun 0.503

bornite

noun 0.502

lithium niobate

noun 0.502

brookite

noun 0.501

titanium dioxide

noun 0.501

zircon

noun 0.501