Fluorite With Chalcopyrite
Large Cabinet, 23.6 x 12.6 x 11.4 cm
Sub-Rosiclare Level, Denton Mine, Illinois, USA
Ex. Ross Lillie
Large fluorite crystals, to 8.8 cm across, are festooned with drusy calcite and pyrite. The fluorite crystals are lustrous and translucent along with a fine purple color, and exhibit thin color zoning at the terminations. The crystals emit a dark purple fluorescent color (due to hydrocarbon inclusions?) when lit in UV. Overall, it is just a big, huge, impressive fluorite in remarkable condition - A little dark, but with impressive geometry. Weight is about 6 pounds. RCL0434
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