Tune in to the phenomenon of ulexite. Plop this rock on any surface and it demonstrates a cool fiber-optic effect. The mineral ulexite projects images to its surface, that's how it got the nickname "TV ROCK".
It's a super fun addition to any rock collection. Made in the USA 6x1x3.5" peggable card with information.
Great little collectible science toys and STEM demonstration items.
