rare earth

noun 0.915

erbium

noun 0.637

rare

noun 0.634

lanthanide

noun 0.623

neodymium

noun 0.617

chemical element

noun 0.613

microelement

noun 0.604

cerium

noun 0.603

rhenium

noun 0.596

europium

noun 0.588

yttrium

noun 0.585

lanthanum

noun 0.582

element

noun 0.578

dysprosium

noun 0.577

praseodymium

noun 0.576

rareness

noun 0.570

alkaline earth metal

noun 0.570

alkaline earth

noun 0.568

ruthenium

noun 0.561

lanthanoid

noun 0.561

precious metal

noun 0.561

iridium

noun 0.557

retroelement

noun 0.557

major element

noun 0.552

transition element

noun 0.552

bastnaesite

noun 0.550

samarium

noun 0.547

rubidium

noun 0.545

radium

noun 0.544

terbium

noun 0.541

lutetium

noun 0.541

ytterbium

noun 0.539

rarity

noun 0.539

rhodium

noun 0.539

uranium

noun 0.536

representative element

noun 0.535

einsteinium

noun 0.534

transition metal

noun 0.533

transuranic

noun 0.532

noble metal

noun 0.531

thorium

noun 0.529

rara avis

noun 0.529

actinide

noun 0.527

tellurium

noun 0.525

elemental

noun 0.524

gadolinium

noun 0.522

scandium

noun 0.518

alkali metal

noun 0.518

nonmetal

noun 0.516

noble gas

noun 0.516

monazite

noun 0.515

radioactive

noun 0.512

beryllium

noun 0.512

ore

noun 0.510

tungsten

noun 0.508

alloying element

noun 0.507

radionuclide

noun 0.506

hafnium

noun 0.505

holmium

noun 0.504

metalloid

noun 0.504

ultramafic

noun 0.504

strontium

noun 0.503

xenotime

noun 0.502

magnetite

noun 0.502

indium

noun 0.501

ilmenite

noun 0.500