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Comments: Ore sample of a mixture of several sulfide minerals: pentlandite, chalcopyrite, and pyrrhotite.
Location: Frood-Stobie Mine, Sudbury District, Ontario, Canada.
Scale: 20x15x7 mm.
© John Betts - Fine Minerals
Pentlandite: (Fe,Ni)9S8 Plumbopalladinite: Pd3Pb2 Valleriite: 4(Fe,Cu)S·3(Mg,Al)(OH)2 Cubanite: CuFe2S3
Comments: Polished Section image (PPL) of plumbopalladinite (Pl) with polarite Po), surrounded by a rim of isoferroplatinum (Iso) with cubanite (Cu), pentlandite (Pe), and valleriite (Va).
Location: Majak Mine, Talnakh, Norilsk, Ural, Russia.
Scale: Picture Size 0.7 mm.
© Thomas Witzke