Calcite on Fluorite, Rosiclare Level, Main Ore Body, Denton Mine, Ozark-Mahoning Company, Harris Creek District, Southern Illinois, Mined c. 1981, Tolonen Collection, Small Cabinet 6.0 x 8.0 x 11.0 cm $750. Online 1/18. SOLD.
Zoned sky blue, lustrous fluorite with associated calcite and micro chalcopyrite. This is a classic specimen from very early development of the Main Orebody in the Denton Mine. Note the size of crystals, to nearly 6 cmm association with small white simple calcite scalenohedron and included micro chalcopyrite with intense purple halos as highly characteristic from this section of mine. Beautiful color. Natural cleave on one crystal showing slight re-growth to matte sheen. Tiny edge chips on same crystal. Tolonen Collection. Rare on market. Entered into Ross C. Lillie Collection database as RCL2526.