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Plating of very well formed bright yellow autunite crystals, from the Margnac mines in Haute-Vienne department, France (definitively closed in 1995).
Radioactive and fluorescent mineral.
3,7 x 3,5 x 0,5 cm
Plating of bright yellow autunite crystals, from the Margnac...
A fairly well-crystallized autunite slab with a bright yellow...