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Zincospiroffite: Zn2Te3O8
Comments: Polished section showing zincospiroffite (x) intergrown with native gold (Ng) as the oxidation products of calaverite (Cv) + sphalerite (Sph) ± pyrite. (CanMin, v 42, p 765). Location: Quartz ore of the Zhongshangou gold deposit, Chongli County, Hebei Province, China. Scale: Field of view 2 mm. © Canadian Mineralogist