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Benstonite on Calcite and Fluorite, Bethel Level, Minerva No. 1 Mine, Minerva Oil Company, Cave-in-Rock District, Southern Illinois, Mined c. 1960's, ex. Roy Smith Collection M966, Medium Cabinet 6.5 x 9.0 x 14.0 cm, $850. Online Dec. 14


  • $ 85000

Druse of spear point calcite richly covered with epitaxic benstonite on yellow and blue fluorite.  The Minerva No. 1 Mine is the premier location for the complex carbonate, benstonite, and this is a prime example.  Some localized edge chipping on fluorite.  Note: Small repair on side with heavily coated benstonite.