Calcite and Chalcopyrite on Fluorite, Sub-Rosiclare Level Bahama Orebody Denton Mine, Ozark-Mahoning Company, Harris Creek District, Southern Illinois, Mined ca. 1992-1993, Koster Collection #00245, Medium Cabinet 8.0 x 9.0 x 14.0 cm, $650. SOLD.
Mounded group of of zoned purple fluorite with associated glassy transparent calcite and brass chalcopyrite. Advance mining ca. late 1992-1993. Overall color, surface texture and association with high quality calcite unique to the Bahama Pod. Condition notes: surface cleaves on a few crystals. Sam & Ann Koster Collection #00245. Entered into Ross C. Lillie database as RCL2582. Database notes- Provenance: Sam & Ann Koster Collection #00245; sold to Ross Lillie at their home in Houston 2016. Ore body characteristics; banded light and medium purple fluorite over nearly colorless fluorite; pronounced mosaic textured surface on fluorite; association with gemmy modified transparent calcite scalenohedrons; presence of brassy chalcopyrite; lens of light gray limestone on matrix.