Lovely 'Wheat-Sheaf' Calcite Crystals, on Bitumen-Encased top Yellow Fluorite Cube Miniature, from Cave-In-Rock, Illinois

An unusual and uncommon beauty of a miniature mineral specimen consisting of a larger wheat sheaf calcite crystal with several off-shoots, clinging to two cubic crystals of yellow fluorite whose top surfaces top are completely covered in a coating of black bitumen!! Great condition. Fluorescent in long wave UV light per picture. Even has a number of well-defined chalcopyrite crystals! A fine choice miniature from the Cave-in-Rock, Illinois location!

Measures roughly 1.5 x 1 x 1 inches. A miniature.