augite [aw-jahyt] ExamplesWord Origin noun

  1. a silicate mineral, chiefly of calcium, magnesium, iron, and aluminum: a dark-green to black variety of monoclinic pyroxene, characteristic of basic rocks.

Origin of augite 1780–90; Latin augītis a kind of precious stone Greek, equivalent to aug(ḗ) sunlight + -ītis, feminine of -ītēs -ite1 Related formsau·git·ic [aw-jit-ik] /ɔˈdʒɪt ɪk/, adjective Examples from the Web for augite Historical Examples of augite

  • Pyroxene, quartz and augite form the groundmass, as seen in section.

    The Long Labrador Trail

    Dillon Wallace

  • Augite, when it occurs, is sometimes green, at other times purple.

    Encyclopaedia Britannica, 11th Edition, Volume 16, Slice 2


  • These are distinguished from augite by containing little or no aluminium.

    Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 5


  • Sections of augite crystals from the lavas of 1794 and 1820.

    Volcanoes: Past and Present

    Edward Hull

  • A crystal of augite is shown near the bottom of the drawing.


    G. F. Rodwell

  • British Dictionary definitions for augite augite noun

    1. a black or greenish-black mineral of the pyroxene group, found in igneous rocks. Composition: calcium magnesium iron aluminium silicate. General formula: (Ca,Mg,Fe,Al)(Si,Al) 2 O 6 . Crystal structure: monoclinic

    Derived Formsaugitic (ɔːˈɡɪtɪk), adjectiveWord Origin for augite C19: from Latin augītēs, from Greek, from augē brightness augite in Science augite [ô′jīt′]

    1. A glassy, dark-green to black variety of pyroxene. Chemical formula: (Ca,Na)(Mg,Fe,Al)(Si,Al)2O6.
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