Calcite on Fluorite with Barite Inclusions, Rosiclare Level attr: Minerva #1 Mine, Minerva Oil Company, Southern Illinois, Mined c. 1960s, Dr. Perry & Anne Bynum Collection, Small Cabinet 4.0 x 4.0 x 4.0 cm, $125. Online 7/24. SOLD.
Zoned yellow and blue fluorite with abundant white barite inclusions. The largest fluorite face shows concave etched impressions where barite was preferentially dissolved during formation. Complete floater with the matrix a spike of etched yellow fluorite encrusted with tiny calcites. Associated hydrocarbon. In excellent condition. Dr. H. Perry & Anne Bynum Collection.