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Cotunnite: PbCl2 Burnsite: KCdCu7O2(SeO3)2Cl9
Comments: Images of burnsite grains (dark) in intimate intergrowth with cotunnite (light). Images obtained by scanning electron microscopy. Location: North Breach of the great fissure Tolbachik volcano eruption (1975-1976), Kamchatka Peninsula, Russia. Scale: Scale bar: 20 µ-m. © Canadian Mineralogist
Cotunnite: PbCl2
Comments: White to tan translucent crystalline cotunnite on volcanic slag. Location: Vesuvius, Campania, Italy. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species