Fluorite, Rosiclare Level North-End Denton Mine, Ozark-Mahoning Company, Harris Creek District, Southern Illinois, Mined ca. 1983, Koster Collection #00011, Miniature 4.0 x 6.0 x 8.0 cm, $250. Online 03/07. SOLD.
Lustrous, transparent deep amber yellow and purple fluorite with chalcopyrite inclusions. The purple color is localized and on some faces and present only as isolated spots on some faces. A very unusual specimen from advance mining ca. 1983. Tiny cleave on corner of main crystal. Sam & Ann Koster Collection #00011.