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Fluorite with Sphalerite and Ankerite
Beaumont (Allenheads) Mine, Diana Vein, East Allendale, Northumberland, England, UK
10 cm across
A mound of dark gray silicified limestone covered with numerous pale lavender twinned fluorite crystals up to 1.7 cm with associated sphalerite and ankerite. Specimen was recovered ca. 1971. (Author: James)
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