Fluorite, Rosiclare Level Minerva #1 Mine, Ozark-Mahoning Company, Cave-in-Rock District, Southern Illinois, Mined c. 1992-1993, Tolonen Collection, Medium Cabinet 5.0 x 10.5 x 11.0 cm, $2800. Online 1/18 SOLD
Richly zoned caramel yellow and blue fluorite with localized inclusions of chalcopyrite on interface between blue and yellow bands. Nice surface relief with raised rim and recessed center Very sharp cubic faces. Pristine condition. Advance mining ca. 1992-1993. Tolonen Collection.