SEMSEYITE 3D HERJA Mine CHIUZBAIA BAIA MARE ROMANIA campo 6 mm enhanced
Collecting the World: Inside the Smithsonian
Semseyite is a rarely occurring sulfosalt mineral and is part of the class of lead antimony sulfides. It crystallizes in the monoclinic system with the chemical composition Pb9Sb8S21. The mineral forms dark gray to black aggregates.
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