pyrite

noun 0.696

iron sulphide

noun 0.620

pyrrhotite

noun 0.612

magnesite

noun 0.607

siderite

noun 0.595

marc

noun 0.588

magnetite

noun 0.575

sphalerite

noun 0.568

arsenopyrite

noun 0.563

marquise

noun 0.561

mica

noun 0.556

marlstone

noun 0.554

malachite

noun 0.553

pyrolusite

noun 0.549

anthophyllite

noun 0.546

fayalite

noun 0.540

fluorite

noun 0.536

chalcopyrite

noun 0.533

sulphide

noun 0.530

microspar

noun 0.529

bornite

noun 0.529

mafic

noun 0.526

olivine

noun 0.526

ferrite

noun 0.525

bronzite

noun 0.525

biotite

noun 0.524

quartzite

noun 0.523

pentlandite

noun 0.522

peridot

noun 0.517

manganite

noun 0.516

tetrahedrite

noun 0.515

molybdenite

noun 0.514

chalcocite

noun 0.514

faujasite

noun 0.512

stannite

noun 0.512

marl

noun 0.511

sulfide

noun 0.511

wolframite

noun 0.510

vivianite

noun 0.510

ferrihydrite

noun 0.510

marble

noun 0.508

antimonite

noun 0.508

spessartine

noun 0.508

pargasite

noun 0.508

moss agate

noun 0.507

iron meteorite

noun 0.507

fluorspar

noun 0.507

galena

noun 0.506

goethite

noun 0.506

microcline

noun 0.504

calcite

noun 0.504

azurite

noun 0.503

mar

noun 0.502

labradorite

noun 0.502

iron carbide

noun 0.502

schist

noun 0.501

cobaltite

noun 0.500