Place this television TV stone on an image or printed text. The image will be transmitted up through the crystal fibers of the stone and appear on what looks like the surface of a television screen! WOW!
Television TV stone is satin spar selenite, a type of gypsum, CaSO4 2H2O. It is composed of parallel, fibrous crystals that have the ability to transmit light. This phenomenon of light traveling through satin spar selenite crystal fibers is the same one used in fiber optic communications.
When lake basin water containing calcium and sulfur evaporates, these minerals are deposited on the basin floor, sometimes in the form of satin spar selenite.
Each piece is approximately 0.5 to 1 inch in size.
Please be aware that this is a natural mineral and as such each piece is one of a kind! The one you receive may not be exactly the same as the ones pictured but it will be similar. Price is per each piece. They come in irregular shapes, sizes and weights.
This kit allows to build up to 3 different robots!
This genuine meteorite is great for the rock collector in your family!
Get swept away by this fantastic robot kit that uses vibrations to move!
Watch what your music can create with this amazing Snap Circuits set!
This microscope is so versatile you can even take it with you on a job site!
Provides the power to execute all the basic electrostatic demonstrations on an energetic and dramatic scale with up to 350,000 volts!