Magnetic separation

Classification of minerals on the magnetic properties:

Strongly magnetic minerals: franklinite, maghemite, magnetite, pyrrhotite (monoclinic), titanomagnetite

Medium magnetic minerals: aeschynite, amphibole (dark-colored), biotite, chromite, columbite, epidote, ferberite, fergusonite, garnet (dark-colored), hematite, ilmenite, limonite, psilomelane, pyrolusite, pyroxene (dark-colored), samarskite, spinel, tourmaline (dark-colored), wolframite

Weakly magnetic minerals: allanite, amphibole (light-colored), brannerite, gadolinite, garnet (light-colored), goethite, ironstone, marmatite, monazite, pyrochlore, pyroxene (light-colored), pyrrhotite (hexagonal), siderite, specularite, spinel (light-colored), sphene, staurolite, tourmaline (light-colored), xenotime

Non-magnetic minerals: aegerine, ahroit, anatase, andalusite, apatite, arsenopyrite, axinite, azurite, baddeleyite, barite, benitoite, beryl, bismuthinite, blende, braunite, brookite, calcite, cassiterite, cerussite, chalcocite, chalcopyrite, chrysoberyl, cinnabar, clinozoisite, cobaltite, corundum, diamond, dolomite, euclase, feldspar, fluorite, glauconite, galena, garnet, hausmannite, hessite, hornblende, kyanite, malachite, manganite, manganocalcite, molybdenite, monazite, muscovite, orpiment, osmiridium, palladium, perovskite, phenacite, platinum, psilomelane, pyrite, pyrolusite, pyroxene (colorless), quartz, raspite, rhodochrosite, realgar, rutile, scheelite, siderite, sillimanite, smithsonite, spinel, spodumene, staurolite, stibnite, talc, topaz, thorianite, thorite, tourmaline, tremolite, vanadinite, vesuvianite, vernadite, wolframite, wulfenite, zircon, zoisite

Diamagnetic minerals: copper, gold, lead, silver, tin, zinc

Types of magnetic order:

Diamagnetism
Paramagnetism
Ferromagnetism
Ferrimagnetism
Antiferromagnetism

February 7, 2016

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