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The relative effect of anorthite on predicted melt compositions is indicated.
Late phases are mainly calcic amphiboles of magnesio-hornblende composition and plagioclases with very low anorthite contents.
Lunar settlers could extract oxygen from the minerals ilmenite and anorthite .
Because of the preponderance of the mineral anorthite (a calcium-rich variety of the mineral plagioclase feldspar) this rock type is called anorthosite.
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