Yooperlite (Fireworks Stone) Tumbled Stone (Approx. 1" - 1 1/2") 1447 The fireworks show up when you use a black light. You will receive one of crystal similar to those pictured in the listing intuitively chosen by me. Size is approximate and each stone varies. •Release Negative Thoughts •Self-acceptance •Inner Peace See more at stonepathtrading.com