| 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]