Calcite on Fluorite, Rosiclare Level Main Orebody Denton Mine, Ozark-Mahoning Company, Harris Creek District, Southern Illinois, Mined August 1980, Miniature 3.5 x 4.5 x 8.0 cm, $450. Online 03/07. SOLD.
Lovely, zoned light yellow and purple fluorite with chalcopyrite inclusions in combination with preferential druse of lustrous modified calcite. A couple of the calcites have a greenish rim from surface oxidation of chalcopyrite. This is a very early specimen from the Denton Mine ca. 1980: first year of development. Choice condition and aesthetics. Entered into Ross C. Lillie database as RCL2575.