Ankaramite

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Ankaramite
Igneous rock
Composition
Mafic:pyroxene, olivine and plagioclase.

Ankaramite is a dark porphyritic basanite which has abundant pyroxene and olivine phenocrysts.[1] It contains minor amounts of plagioclase and accessory biotite, apatite, and iron oxides.

Its type locality is Ankaramy, in Ampasindava, Madagascar. It was first described in 1916.[1]

References[edit]

  1. ^ a b http://rmcg.unam.mx/17-1/(3)Ortiz.pdf Luis Enrique Ortiz Hernández, An Arc Ankaramite Occurrence in Central Mexico, Revista Mexicana de Ciencias Geológicas, volumen 17, número 1 2000, p. 34-44