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Bournonite on Quartz
5.5 x 6 x 13.5 cm / main crystal: 5.5 cm.
(Autor: MIM Museum)

Yaogangxian Mine, Yizhang, Chenzhou Prefecture, Hunan Province, China
Bournonite on Quartz
5.5 x 6 x 13.5 cm / main crystal: 5.5 cm.
(Autor: MIM Museum)

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