Calcite on Sphalerite, Rosiclare Level, Cross-Cut Orebody, Minerva #1 Mine, Ozark-Mahoning Company, Cave-in-Rock District, Southern Illinois Miniature 2.5 x 3 x 3.5 cm $75. Online 10/28
Hemisphere of lustrous calcite on matrix of sphalerite. Completely crystallized to all sides and in excellent condition. Choice miniature from advance mining in 1991. Kalaskie Collection #735.