Discover rare glowing fluorescent minerals. Shine a UV light on these fluorescent minerals and what looks like an ordinary rock suddenly becomes a brilliant display of fluorescent color. Only 15-percent of the world's minerals are fluorescent, making for a fun challenge to go hunting for more of these rare minerals. Kit includes a portable, battery powered UV lamp, 6 fluorescent minerals that glow in beautiful colors and an information packet filled with fun experiments. Requires 4 AA batteries.