Calcite on Barite and Fluorite with Celestite, Rosiclare Level, Minerva #1 Mine, Ozark-Mahoning Company, CIR District, Southern Illinois, Mined c. 1993, Ron Roberts Collection BPCE-17, Medium Cabinet 7.5 x 13.0 x 13.0 cm, $125. Online September 14.
Mound of barite and fluorite encrusted with shiny calcite and associated lath-like celestite. A distinctive specimen from the Minerva #1 ore body. A few calcite crystals are locally tipped but overall quality is fine. Ex: Don Brown Collection, Detroit, MI.