39 Pyroxenites 39 is the name given to ultramafic rocks comprising gt 60 pyroxene igneous rock which may contain biotite hornblende or olivine as accessories
Pyroxenite is an ultramafic igneous rock consisting essentially of minerals of the pyroxene The principal accessory minerals in addition to olivine and feldspar are chromite and other spinels garnet magnetite rutile and scapolite
Pyroxenite Olivine pyroxenite Modal classification of ultramafic rocks after Streckeisen 1973 Modal classification of ultramafic rocks after Streckeisen 1973
