Fluorite and Sphalerite, Rosiclare Level Minerva #1 Mine, Ozark-Mahoning Company, Cave-in-Rock District, S. Illinois, Mined 1993, Kalaskie Collection #42-253, Small Cabinet 4.5 x 7.0 x 10.0 cm, $480. Online 1/12.
Combination of high luster, deep brown sphalerite and zoned yellow, purple and light blue fluorite. The sphalerite crystals reach 4.5 cm across and fluorite to 2.3 on edge with glassy surface and high transparency. Very well balanced with approximately equal number of sphalerite crystals on each side and attached fluorite in the center. In top condition. Mined 1993. Betty Kalaskie Collection #42-253.