Barite on Fluorite

This assemblage of fluorites began as slightly yellow, with some clear and progressed to purple. It needs a good light behind it to show off the internal colors. Under room lighting it is a matt luster and a lavender/purple. The barites are quite nice in many places, comprised of platy masses with degrees of transparency to translucency. Ex Jim and Paula Wilson

Locality: Annabel Lee Mine, Harris Creek District, Hardin County, Illinois

Composition: barium sulfate on calcium fluoride