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Definition of molybdenite : A mineral occurring in soft, lead- gray, foliated masses or scales, resembling graphite; sulphide of molybdenum.

Synonyms:

clay, calcite, lignite, manganese, talcum, chromite, bauxite, corundum, azurite, hornblende, kaolinite, peat, asbestos, alabaster, fluorspar, fluorite, coke, silicate, silica, emery, obsidian, garnet, fool's gold, barite, selenite, graphite, feldspar, quicklime, iolite, aragonite, carbon, spar, mica, lazurite, pitchblende, pyroxene, pyrite, pumice, gypsum, mineral, brookite, lime, orthoclase, cryolite, chlorite, salt, coal, diatomite, boron, brimstone, quartz, cobalt, ozocerite, glauconite, vermiculite, sulfur, chalcedony, crystal, rhodonite, magnesite