Availability: 1 in stock
When we look for quality of an Illinois fluorite we look for a glassy surface, color, phantoming, inclusions, and overall appeal. This small piece has all of those criteria. An internal cleave can be easily resolved with a vacuum seal if desired. Bitumen inclusions, some rod shaped, make this piece unusual. Some chipping along one edge. The piece comes with two old labels.
Locality: Cave-in-Rock, Hardin County, Illinois
Composition: calcium fluoride