This unusual piece consists of “frosted” yellow fluorite and calcite on one side with calcite crystals on the other side.
Location: Cave In The Rock, Hardin County, IL
Dimensions: 6 x 3 x 1.5 in (15.24 x 7.62 x 3.81 cm)
Weight: 1 lb 1.5 oz (496.5 gm)
* Dimensions and weight are approximate and may have been rounded off.
