These take the form of layered pyroxenite and dunite; layered dunite, and harzburgite; and layered pyroxenite, peridotite and gabbro.
en.wikipedia.org Minor minerals and mineral groups in peridotite include plagioclase, spinel (commonly the mineral chromite), garnet (especially the mineral pyrope), amphibole, and phlogopite.
en.wikipedia.org Thirdly there is a low titanium basalt-andesite with extreme light rare earth element depletion that produced the layered pyroxenite-peridotite and associated gabbro cumulate.
en.wikipedia.org Modal metasomatism may result in formation of amphibole and phlogopite, and the presence of these minerals in peridotite xenoliths has been considered strong evidence of metasomatic processes in the mantle.
en.wikipedia.org The rock is a dark-green peridotite (kimberlite) composed of serpentinized olivine and a number of accessory minerals, including phlogopite, pyrope, calcite, enstatite, magnesian ilmenite, and others.
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