Quartz and Sphalerite with Fluorite and Galena, Sub-Rosiclare Level Deardorff Mine, Ozark-Mahoning Company, Cave-in-Rock District, Southern Illinois, Mined ca. 1960s, Holzner Collection #601, Small Cabinet 4.0 x 7.0 x 8.0 cm, $65. Online 4/30.
Silicified limestone encrusted with drusy quartz over localized sphalerite and galena. A classic Deardorff specimen circa 1960s. In excellent condition. Ken and Marilee Holzner Collection #601.