Fluorite from Cave in Rock, Illinois USA. This specimen of Dissolution Fluorite has beautiful deep etched faces with a dark Mauve colour in normal light... but when back lit the intense Yellow orange really pops through! There is a small scattering of tiny Chalcopyrite crystals dotted over the piece and despite the size, has absolutely no damage! There are 4 photos with normal lighting and 2 with strong backlighting. Also, please click the link below to see a video of the specimen with and without backlighting.
Ex B & L Hales collection.
Measures 165 x 150 x 70mm.