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Zinkenite: Pb9Sb22S42
Comments: Jackstraw zinkenite crystals. Individual crystals reach up to 2 cm in length. Location: Monserrat Mine, Antequera, Oruro, Bolivia. Scale: 4.5 x 3.2 cm. © John Veevaert
Zinkenite: Pb9Sb22S42 Stannite: Cu2FeSnS4
Comments: Acicular crystals of zinkenite perched on a twinned, crystal of stannite. Location: Mina San José, Oruro, Bolivia. Scale: 4 x 2.3 x 1.7 cm. © Fabre Minerals