Aegirine Mineral information data and localities
Pyroxene Group Clinopyroxene Subgroup Both acmite and aegirine have been used as designations of pyroxenes close to NaFe 3 Si 2 O 6 in composition Acmite has also often been used to refer to the brown variety with pointed terminations usually 221 and 661 while aegirine has been reserved for the green to greenblack colour varieties