augitite

augitite

[′ȯ·jə‚tīt]
(petrology)
A volcanic rock consisting of abundant phenocrysts of augite in a glassy groundmass containing microlites of nepheline and plagioclase, with accessory biotite, apatite, and opaque oxides.
References in periodicals archive ?
3 Ma, and the augitite dyke exposed in the northern slope of Hlidka Hill (Hibsch 1915).