A true Illinois masterpiece

A true Illinois masterpiece.

This extraordinary Denton Mine Fluorite on Sphalerite from the legendary Harris Creek Mining Sub-District, Hardin County, Illinois is the definition of collector quality. Deep, richly saturated violet cubes rise dramatically from a glittering bed of jet-black sphalerite, creating one of the most iconic mineral pairings ever produced from the Cave-In-Rock district.

Adding even more significance, this specimen comes from the esteemed Ross Lillie Collection, giving it exceptional provenance and connecting it to one of the most respected names in the world of fine Illinois fluorites. Provenance like this elevates an already remarkable specimen into a true piece of mineral-collecting history.

The bold cubic geometry, exceptional luster, and intense color make this specimen impossible to overlook. Every angle reveals new depth as light passes through the fluorite, while the metallic sphalerite provides the perfect contrast beneath.

A timeless classic where world-class aesthetics, legendary locality, and historic provenance come together in one unforgettable specimen.

Personal Collection — NFS