Calcite on Fluorite and Sphalerite, Bethel Level, North End Annabel Lee Mine, Ozark-Mahoning Company, Harris Creek District, Southern Illinois, Mined ca. 1985-1988, Koster Collection #00444, Small Cabinet 4.0 x 5.5 x 7.5 cm, $450. Online 3/11. SOLD.
Lustrous zoned rich yellow and light blue fluorite with associated calcite and sphalerite. Note the localized etched surfaces of fluorite as evidence of barite dissolution. Resinous brown sphalerite and rice-like grains of calcite characteristic of the Bethel Level. Mined ca. 1985-1988. Tiny cleave on corner of fluorite. Sam & Ann Koster Collection #00444. Entered into Ross C. Lillie database as RCL2584.