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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).
Quartz ore of the Zhongshangou gold deposit, Chongli County, Hebei Province, China.
Field of view 2 mm.
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