Crystal Prospect

fluorescing CALCITE - Minerva Mine, Cave-in-Rock, Illinois, USA

Sharp white Calcite crystals with secondary growth, fluorescent under SW and LW UV.

from Minerva No. 1 Mine (Ozark-Mahoning No. 1 Mine), Ozark-Mahoning Group, Cave-in-Rock Sub-District, Illinois - Kentucky Fluorspar District, Hardin County, Illinois, USA

Measures approximately 2 x 1.5 x 1.5 inch, 4.54 oz / 51 x 38 x 38 mm, 129g

Price: 80.00 USD

Item # A1091213

To show the fluorescent response the specimen was illuminated using 6 watt 254nm (Short Wave) / 366nm (Long Wave) UVGL-58 lamp (you need a proper UV light source to observe the fluorescence, more powerful lamp = brighter response).