It is called TV Selenite because, if you place it over an image, the image appears to be at the top of the rock, as on a TV screen. The fibres of the selenite act as optical fibres, transmitting light along their lengths by internal reflection. Lots of detailed information can be found on the web.
Item Details
Date | Purchased in 2015 |
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Key Phrases | Optical |
Category | Novelties, Toys, Games & Jokes |
Ref no | N1635 |