gsminmag Mineralogical Magazine Mineralogical Magazine 0026-461X Mineralogical Society 10.1180/minmag.1921.019.93.03 Augite from Nishigatake, Japan Ōhashi Ryōichi Professor of Mineralogy and Geology, Akita Mining College, Japan 6 1921 19 93 173 180 Copyright © 1921, The Mineralogical Society 1921