Fluorite with Chalcopyrite and Calcite, Rosiclare Level Annabel Lee Mine, Ozark-Mahoning Company, Harris Creek District, Southern Illinois, Mined ca. 1986-1988, Koster Collection #00440, Miniature 5.0 x 5.5 x 8.0 cm, $250. Online 03/07. SOLD.
Deep yellow fluorite group with light purple rims and abundant inclusions of brassy chalcopyrite. This is one of the richest examples of chalcopyrite inclusions I have seen from this ore body. Excellent condition and presentation. Mined ca. 1986-1988. Sam & Ann Koster Collection #00440.