ankaramite (an-ka'-ra-mite). An olivine-bearing basanite containing numerous pyroxene (usually clinopyroxene) phenocrysts, the former being more abundant than the latter, in a fine-grained groundmass composed of clinopyroxene microlites and calcic plagioclase. It was named by Lacroix in 1916 from Ankaramy, Malagasy.