Fluorite with Calcite and Chalcopyrite, ALCOA Mine, Rosiclare District, Southern Illinois attr: Fairview Mine Medium cabinet 5 x 10.5 x 17 cm $1500. Online 12/10
The Rosiclare District was the backbone of fluorspar production for decades and set the bar for pricing and tonnage. Even though these mines were fantastically rich, specimens from them are exceedingly rare and especially those that are accurately documented. (The finest suite of Fairview Mine fluorite I know of resides in the Clement Museum in Marion, Kentucky. A fantastic array of specimens are on display there, identical in all regards to this piece).