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Noun: atomic number 12
  1. A light silver-white ductile bivalent metallic element; in pure form it burns with brilliant white flame; occurs naturally only in combination (as in magnesite and dolomite and carnallite and spinel and olivine)
    - magnesium, Mg

Type of: metal, metallic element

Part of: bitter spar, carnallite, dolomite, magnesia, magnesite, magnesium oxide, olivine, periclase, spinel