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pyroxene

[ US /ˈpaɪɹɑkˌsin, paɪˈɹɑksin/ ]
NOUN
  1. any of a group of crystalline silicate mineral common in igneous and metamorphic rocks

How To Use pyroxene In A Sentence

  • Other variants include feldspar-pyroxene-phyric lava and, rarely, aphyric lava.
  • The magmatic evolution is dominated by low-pressure crystal fractionation of olivine, Cr-spinel, plagioclase and clinopyroxene.
  • In addition to quartz, fluid inclusions can occur in carbonates, gypsum, halite, fluorite, feldspar, garnet, pyroxene, amphibole, tourmaline, olivine, and sphalerite; indeed in most minerals except phyllosilicates.
  • Geochemically, the pyroxene nephelinite is highly enriched in LILE compared with the first one.
  • Biotite, epidote and clinopyroxene are also occasionally present, whereas garnet is virtually absent.
  • The majority of the rhyolites are porphyritic and contain phenocrysts of one or more of the following: plagioclase, clinopyroxene, magnetite, quartz and sanidine, plus accessory apatite and zircon.
  • Pyroxene is exclusively diopsidic augite, with a composition relatively colse to the diopside - hedenbergite join.
  • The majority of the rhyolites are porphyritic and contain phenocrysts of one or more of the following: plagioclase, clinopyroxene, magnetite, quartz and sanidine, plus accessory apatite and zircon.
  • Several igneous dikes and sills have been intruded into this sedimentary sequence, the largest of which is the Great Whin Sill, a quartz-orthopyroxene dolerite of late Carboniferous age.
  • Pyroxene, quartz and augite form the groundmass, as seen in section. The Long Labrador Trail
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