Fluorite on Sphalerite with Calcite, attr: Hill-Ledford Mine, Ozark-Mahoning Company, Cave-in-Rock District, Southern Illinois, Mined c. early 1960's, Bynum Collection, Miniature 2.5 x 3.0 x 3.5 cm, $125. Online 11/12/14. SOLD.
Transparent, light purple fluorite cube on lustrous sphalerite matrix with a couple of associated calcite crystals. The fluorite is complete on all sides and has interesting dark purple spots and zoning in the center and near the surface. Small contact point on backside of upper right but does not impact display aesthetics. Mined c. early 1960s. Bynum Collection.