swr BOURNONITE and CHALCOPYRITE on QUARTZ, Yaogangxian Mine, Hunan Province, China, 15 x 6 x 3 cm, Cabinet, | |
Several terminated Quartz crystals with a small amount a dark matrix which is a combination of Bournonite and Chalcopyrite. There is a small but excellent 8 mm Bournonite crystal behind on of the Quartz crystals. I will take another photo of the Bournonite crystal. |