QUARTZ with STANNITE and ARSENOPYRITE, Yaoguangxian mine, near Chenzhou, Yizhang Co., Hunan Province, China, 4.5 x 4 x 2.5 cm | |
The Stannite crystals are not well defined or are very small but occur in clusters of dark crystals. The Arsenopyrite is silvery colored and well defined. |