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Penfieldite: Pb2Cl3(OH)
Comments: Greenish, acicular penfieldite crystals. Location: Laurium, Greece. Scale: Not Given. © Lou Perloff / Photo Atlas of Minerals
Comments: White to clear or light blue, doubly terminated, striated penfieldite crystals from 0.5 to 2mm associated with boleite as micro coatings. Location: Margarita mine, Sierra Gorda, Chile. Scale: Picture size 5 mm. © Tom Loomis / Dakota Matrix