Fluorite on Calcite with Chalcopyrite, Pierce Vein, Gaskins Mine, Minerva Oil Company, Empire District, Southern Illinois, Mined c. early 1970’s, ex. Roy Smith Collection, Miniature, 2.8 x 3.2 x 4.9 cm, $200. Online Dec. 12.
Neat little miniature from the most prolific specimen producing mine in Pope County with classic multi-zoned blue-purple fluorite on creamy white calcite. Note: Micro-chalcopyrites as a distinctive associated species. Main fluorite is in excellent condition measuring 1.4 cm on edge. A small associated fluorite is cleaved.