Fluorite (Penetration Law twin), Sub-Rosiclare Level, Annabel Lee Mine, Ozark-Mahoning Company, Harris Creek District, Southern Illinois, Mined December 1989, Kalaskie Collection #42-79, Miniature 3.5 x 4.5 x 5.5 cm, $350. Online 11/8
Zoned blue, purple and yellow semi-transparent satin luster fluorite from advance mining December 1989. Crystals to approximately 2.7 cm on edge. In excellent condition and a fine example of a Penetration Law twin from the district. Betty Kalaskie Collection #42-79.