Calcite (Twinned) on Fluorite (Illustrated)
Small Cabinet, 7.7 x 6.7 x 3.7 cm
Sub-Rosiclare Level, Bahama Pod, Denton Mine, Harris Creek District, Illinois, USA
Ex. Ross Lillie

Choice cluster of two generations of Calcite clustered together and perched on stepped, translucent purple Fluorite. The first generation of Calcite consists of a translucent, straw-colored twinned Calcite 2.5 cm across, intergrown with a single scalenohedron. The second generation of honey-colored Calcites are gemmy and lustrous and perched on the sides, with the largest crystal being 2.5 cm and doubly-terminated. You rarely see so dramatic a combination of two calcite styles from these mines, together. Mined in 1992, this was also illustrated in the Mineralogical Record's Illinois-Kentucky Fluorite Districtissue, V. 28, P. 30, Fig. 47. A choice, attractive specimen that is highly representative of these combinations. RCL 1369