A superb thumbnail of the rare lead sulphosalt Semseyite from Herja mine at Chiuzbaia, Baia Mare, Romania, in characteristic books of stacked bladed silver grey crystals emerging from a solid bed of Semseyite. The crystals form pointed arrow-shaped crystals which stack in ribbon-like bundles across the specimen's surface. This fine thumbnail comes with a Lidstrom's (Oregon) label.
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