Marcasite, Midway Stone Quarry, Rock Island County, Illinois, Collected c. 1990, Holzner Collection, Miniature approx. 1.5 cm dia x 8.7 cm length, $225. Online 8/12
Terminated marcasite stalactite from the Midway Stone Quarry in Illinois. RARE. In excellent condition. This is the only example I have seen from this location. Collected circa 1990s. Holzner collection.