Fluorite on Sphalerite
Cabinet, 14.4 x 11.0 x 5.0 cm
Minerva No. 1 Mine, Cave-in-Rock Sub-District, Hardin Co., Illinois, USA

A sharp specimen with finely detailed purple phantoms running a ridge around the edges of intense amber-colored fluorites, all on Sphalerite! A classic Illinois specimen, from the Lillie collection. Joe Budd photos.