Alstonite and Benstonite on Fluorite, Bethel Level, Ozark-Mahoning Company, Minerva #1 Mine, Cave-in-Rock District, Southern Illinois, Mined 1995, Ron Roberts Collection UD-6, Small Cabinet 5.0 x 6.0 x 7.5 cm, $125. Online September 14.
Light blue and yellow fluorite with rich association of drusy alstonite and some localized associations of golden yellow benstonite. Excellent example of a rare late-stage carbonate from the district. Originally purchased by Ross Lillie from Eugene Turner/miner at time of mining.