Minerva #1 Mine, Cave-in-Rock, Hardin Co., Illinois, USA
Minerals
Chalcopyrite, Fluorite
Dimensions
9 x 7 x 6 cm
Size class
Small Cabinet
SID
IL101
Translucent, color-zoned Fluorite with a bright light blue outer layer and a yellow core. Lots of stepped cubic faces, some etching, and some cleavage faces.
