TARAMITE Na2CaFe3AlFeSi6Al2O22(OH)2 (monoclinic)
amphibole group; varieties: mboziite

variety mboziite, black microcrystal prisms in quartz
Foyaite Dike, Mbozi Syenite-Gabbro Complex, 50 miles south of Mbeya, Mbeya, Tanzania