Black-out cubes… until the light hits

Black-out cubes… until the light hits

A wild fluorite from the Southern Illinois Fluorspar District showing those inky, near-opaque cubic faces that explode into electric violet and molten honey-orange when backlit. The zoning on this one is insane—dark armor on the outside, glowing fire within, with layered growth and internal structure lighting up like a furnace.

Every angle tells a different story… moody, sharp, and architectural in hand—then straight up radioactive under light. Illinois fluorite doing what it does best.