Transform any space with these stunning natural Yooperlite stones. By day they look like simple gray rocks, but under a UV/black light they come to life with a fiery golden-orange glow, like tiny flames frozen in stone. Features: 0.45 lb = 7.2 oz Natural Yooperlite – genuine sodalite-bearing syenite with UV fluorescence Bulk lot of rough stones – each piece approx. 2–3 inches Strong UV fluorescence – glows bright yellow-orange under 365–395 nm UV light Perfect for crystal collections, décor, meditation, Reiki, altars, grids Great for kids and adults – fun science / geology and night-light display Each stone is unique – shapes, patterns and glow will vary naturally Metaphysical properties (optional) Yooperlite is associated with clearing negative energy, confidence and inner fire. It’s used to help release stress, encourage self-expression and support spiritual growth. Please Note: You will receive a random mix of stones similar to the photos. Colors and glow can appear different depending on your UV lamp and screen settings.