Fluorite, Rosiclare Level, Main Orebody, Denton Mine, Ozark-Mahoning Company, Harris Creek District, Southern Illinois, Mined ca. 1982-1983, Koster Collection #00458, Medium Cabinet 6.0 x 8.0 x 10.0 cm, $350. Online 3/11. SOLD.
Mounded group of very lustrous, semi-transparent zoned yellow and purple fluorite a few chalcopyrite crystals. Groups of this type of fluorite are uncommon as the etched nature usually leaves only corners. Note the localized internal etching on purple sections and very transparent yellow as highly characteristic of the main orebody. Minor edge chips on two crystals. Sam & Ann Koster Collection #00458.