Heart on fire? Let's check. Hold this natural stone under a UV light and see the glowing flares appear before your eyes. Hidden in the dark or even in the light of day, the true contents of the heart are revealed only in the right circumstances.
This syenite-rich fluorescent sodalite stone is most commonly found in the Upper Peninsula of Michigan in the United States, discovered when geologists scan the beaches with UV "black" lights and watch for the lava-like rocks to light up.