Chalcopyrite and Sphalerite on Fluorite, Rosiclare Level, Denton Mine, Ozark-Mahoning Company, Harris Creek District, Southern Illinois, Mined c. 1987, Ron Roberts Collection BP-15, Large Cabinet 9.0 x 10.0 x 17.0cm, $500. Online 5/11.
Light purple fluorite with attractive druse of chalcopyrite with localized blackjack sphalerite. A classic Denton Mine specimen from the main orebody. In very excellent condition. Ex. Hobbs Collection, Hardin County.