Sphalerite, Rosiclare Level, Denton Mine, Ozark-Mahoning Company, Harris Creek District, Southern Illinois, Mined c. 1986, Ralph Campbell Collection, Small Cabinet 2.8 x 5.5 x 10.5 cm, $125. Online 11/3
Very high luster plate of deep brown sphalerite from mining in the South-End of the Denton Mine, circa 1986. In excellent condition and a very fine example of localized ore sections rich in zinc. Ralph Campbell Collection.