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Semseyite: Pb9Sb8S21
Comments: Tabular crystals forming groups and rosettes of gray semseyite with creamy greenish yellow siderite. Location: Herja mine, Maramures Rumania. Scale: 6.5 x 6 x 3.5 cm. © Fabre Minerals
Comments: Crystal clusters of semseyite crystals to 1 cm on sphalerite. Location: Herja, Romania. Scale: Picture size 5 cm. © John Veevaert