| The most common phenocryst silicate phases are olivine, plagioclase and augite, typically, although not always, appearing in that order. |
| Normal alkali basalt contains olivine and, commonly, a diopsidic or titaniferous augite. |
| It was found to contain good crystals of augite and olivine, well striated labradorite, and titaniferous iron ore. |
| Green augite and hypersthene form a considerable part of these rocks, they may contain also biotite, hornblende and quartz. |
| The cpx is classified as augite based on average composition, and displays a very narrow compositional range. |
| They typically comprise early olivine and plagioclase, ophitically enclosed by augite, with opaque oxides and apatite. |
