Ferberite, Arsenopyrite, Quartz from Yaogangxian Mine, Chenzhou, Hunan, China. The ferberite specimen wide around 4.7 cm, pale white arsenopyrite crystals associated with black ferberite crystals. Skeletal ferberite and arsenopyrite crystals show bright metallic luster, and associated with transparent quartz crystals. Interesting combo specimen! size:4.7×4.5×3.5cm, NO.20230629FAQ64.