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Nordstromite: Pb3CuBi7(S10Se4) Weibullite: Pb6Bi8(S,Se)18
Comments: Fibrous, silvery crystals of nordstromite. Lacking a chemical analysis it is possible that the crystal is weibullite instead.
Location: Falu mine, Falun, Sweden.
Scale: Crystal Size 1 mm.
© Tom Loomis / Dakota Matrix