20hhgd.is ((FLUORITE BLUE not PURPLE, CALCITE)), $185 MINIMUM BID, Minerva No. 1 Mine, Ozark-Mahoning group, Cave-in-Rock, Hardin County, Illinois, USA, 10 x 9 x 4 cm, Cabinet | |
Excellent BLUE not PURPLE Fluorite. Undamaged Fluorite. Several Calcite crystals on edge. Lower Calcite crystals have some damage and probably could be removed with selective etching. ex Glenn Davidson collection, |