Fluorite, Rosiclare Level Main Ore Body, Denton Mine, Ozark-Mahoning Company, Harris Creek District, Southern Illinois, Mined ca. 1980-1982, Koster Collection, Medium Cabinet 4.5 x 10.0 x 14.0 cm, $500. SOLD.
Database notes: Provenance: Sam & Ann Koster Collection; sold to Ross Lillie at their home in Houston 2016. Note main ore body characteristics: accentuated overgrowth of purple fluorite on yellow fluorite; good surface luster; localized internal etching coincidental with purple areas. Very uncommon to find this type of spar in groups- most are found as detached, profoundly etched corners.