Calcite on Fluorite, Rosiclare Level, Bahama Pod, Denton Mine, Ozark-Mahoning Company, Harris Creek District, Southern Illinois, Mined ca. 1992-1993, Koster Collection, Medium Cabinet 3.5 x 9.0 x 11.0 cm, $200. Online 3/11. SOLD.
Zoned purple and blue transparent highly lustrous fluorite with associated calcite. Nice morphology and very excellent transparency from orebody. A couple edge chips and two cleaves on reverse. Sam & Ann Koster Collection.