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Brass: Cu3Zn2
Comments: Small brassy metallic grain of brass. Location: Nurek Ore District, Uzbekistan. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Brassite: Mg(AsO3OH)·4(H2O)
Comments: Opaque white botryoidal masses of brassite on matrix. Location: Mine de Salsigne, Aude, France. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species