Ulexite from Boron, California is also known as Television Stone, Television Rock or Television Ore. The crystals are arranged in long clear fibres resembing a bundle of fibre optics fused together. If you polish the stone so that there is a flat face on top and on bottom, you can see through the stone very clearly, and any images placed underneath the stone will seem to be projected on the top.
U"lex*ite (?), n. [After a German chemist.] Min.
A mineral occurring in white rounded crystalline masses. It is a hydrous borate of lime and soda.
© Webster 1913.
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