Fluorite
Basurto Mine, Josefa-Veneros vein, Coroña de Arriba-La Collada, La Collada mining area, Siero, Asturias, Spain
A fluorite cluster from the less well-known Basurto Mine, La Collada area, Asturias, Spain. The striking, large, 2.7 cm, purple fluorite cube is water-clear and lustrous, but has a preferentially frosted face and also has very interesting, preferentially etched, modified, cuboctahedral corners. All of the crystals also have excellent, deeper ...
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