Calcite on Fluorite, Knight Mine, Ozark-Mahoning Company, Rosiclare District, Southern Illinois, Mined c. 1970’s, ex. Shorty Millikan, Ron Roberts Collection BPCF-3, Medium Cabinet 6.5 x 7.0 x 12.0 cm, $50. Online 5/11.
Combination of fluorite and calcite from the last working vein type mine in the Rosiclare District. Note there are at least three phases of calcite deposition; a hallmark of this mine. Typical color of vein type fluorite. In very fine condition.