Fluorite, Rosiclare Level, Northwest Cross-Cut Orebody, Minerva No. 1 Mine, Ozark-Mahoning Co., Cave-in-Rock District, Southern Illinois, Mined February 7, 1991, ex. Sam and Ann Koster Collection #00704, Miniature 4.5 x 5.0 x 6.5 cm, $500. Online Dec. 19
NSMW13530
Glassy luster fluorite crystal richly zoned in yellow, purple and blue with abundant chalcopyrite inclusions. Specimen is a floater with no point of attachment. Note: Etched fluorite matrix result of dissolution of barite. In excellent condition with just one tiny edge rub on the corner point.