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barite; brown etched and corroded crystals, showing late overgrowth of blue-fluorescent calcite

Floddigarry, Staffin, Skye, Highland, Scotland from loose block on beach, ex. Staffin Shales, Jurassic 134133-134136 are from the same concretion. An unspectular small specimenm but barite fluoresces orange under LW UV light, and calcite blue, with very strong phosphorescence.