Fluorite Specimen

Purple Fluorite cube raw from Minerva Mine cave in Rock Harding Illinois. The Minerva No. 1 Mine was a former zinc and fluorspar mine located north of Cave-in-Rock, Illinois. The mine was classified as a bedding replacement type mine (also known as a “manto”), that exploited the Cave-in-Rock orebody. The orebody, according to Alan Goldstein (1997) was approximately 20,000 feet long. It was also the largest bedding replacement orebody in the United States (Goldstein, 1997). This mine has changed hands, and no longer exists. Natural fluorite from this mine