Discover the magic of ulexite with the TV Rock! Place this fascinating mineral on any surface, and watch as it magically projects the image beneath it right onto its top. Known as hydrated sodium calcium borate hydroxide, ulexite was named after the German chemist Georg Ludwig Ulex. Formed from evaporated lake water, this rock’s unique fiber-optic fibers create a captivating visual effect. Just set your TV Rock on printed material and enjoy the tiny fibers transmitting the picture—truly a mineral showstopper!