(Internal # R625-24) This is genuine piece of light green blue white Fluorite specimen from New Mexico with 2 flat sides, measures to be 4-1/2" long x 3-1/4" wide x 1/2" thick. Absolutely beautiful. The beautiful blue and green colors of fluorite come from the Blanchard Mine, Portales Tunnel, Bingham, Socorro County, New Mexico. Some specimens fluoresce under ultra-violet light, a property that takes its name from fluorite. The fluorescence may be due to impurities such as yttrium or organic matter in the crystal lattice. It also exhibits the property of thermoluminescence! What you see in to photo is what you get. FLUORITE Fluorite (also called fluorspar, CaF2) is a beautiful blue and/or green mineral; some pieces fluoresce under ultra-violet light. The fluorescence comes from the impurities of yttrium or organic matter in the crystal lattice. WE SHIP WORLDWIDE, see the chart for postage to your country. Click on our Store tag for SIMILAR items.