Purple and yellow perfection from Southern Illinois

Purple and yellow perfection from Southern Illinois…

This incredible fluorite slice from the legendary Minerva No. 1 Mine showcases one of the most iconic color combinations ever produced from the Cave-In-Rock District. Deep violet-purple fluorite frames a glowing translucent yellow center, creating a natural stained-glass effect when illuminated from behind.

The internal zoning is absolutely mesmerizing. Layers of color, growth patterns, and crystal architecture become visible under light, revealing the story of how this fluorite formed millions of years ago beneath Southern Illinois. Every rotation uncovers new details hidden within the crystal.

Pieces like this are a reminder of why Illinois fluorite remains one of the most beloved and collected fluorites in the world. The contrast between the saturated purple edges and radiant yellow core is simply unforgettable.

Fluorite Minerva No. 1 Mine Cave-In-Rock Mining Sub-District, Hardin County, Illinois, USA

The closer you look, the better it gets. Pure Illinois fluorite magic.