- Miniature, 4.9 x 3.4 x 1.8 cm
- Minerva No. 1 Mine, Cave-in-Rock, Cave-in-Rock Sub-District, Illinois - Kentucky Fluorspar District, Hardin Co., Illinois, USA
A fine, jackstraw nest of lustrous, colorless strontianite crystal bowties from the Minerva #1 Mine of Illinois. Some of the crystal terminations are gem-clear. Classic for the species and locale. Ex. Bill Severance Collection.