Collector's Guide to the Pyroxene Group

Over 115 striking color photos display pyroxene group minerals in all their forms and colors. This group of rock—forming minerals is best known to collectors through well—formed diopside crystals from many localities, including in Canada, the northeastern United States, the Alpine regions of Europe, and through the gem—quality spodumene found in pegmatites from California to Pakistan. Spectacular recent finds of diopside in Pakistan, hedenbergite at Dal'negorsk, Russia, and aegirine in Mala...