An ethereal example from the world-famous Denton Mine, Cave-in-Rock district of Hardin county, Illinois— this specimen displays rich violet and blue fluorite cubes dotted with sharp chalcopyrite crystals that glimmer like a starry sky. The golden flecks are beautifully complemented by a border of creamy calcite crystals reminiscent of moon-lit clouds, adding a painterly contrast. Under UV light, the calcite glows a brilliant yellow.
The chalcopyrite sparkles across the deep purple-blue surfaces, evoking the texture and movement of Van Gogh’s Starry Night. This is a highly representative specimen of Illinois fluorite — bold in color, sharp in form, and visually dynamic.
Origin: Denton Mine, Cave-in-Rock, Hardin County, Illinois, USA
Minerals: Fluorite with Chalcopyrite & Calcite
Dimensions: 4.5”x3”x3.2”
Weight: 660 grams
Highlights:
Distinct golden chalcopyrite inclusions & exclusions across dark violet-to-blue fluorite
Delicate calcite contrast for added texture and balance
Classic and collectible American locality
A fine combination piece that captures both the mineralogical beauty and artistic character that make Cave-in-Rock fluorite so admired.
