Fluorite on Barite on Sphalerite
Out of stock
A gorgeous mound with a sphalerite core coated over with white barite and then covered with small clear to faint lilac fluorites, some of which are phantomed. From the Sam Koster collection.
Locality: Rosiclare Level, Minerva #1 Mine, Cave in Rock District, Hardin County Illinois
Composition: Calcium Fluoride