Ulexite (NaCaB5O6(OH)6•5(H2O)) (hydrated sodium calcium borate hydroxide), sometimes known as TV rock, is a mineral occurring in silky white rounded crystalline masses or in parallel fibers. The natural fibers of ulexite conduct light along their long axes, by internal reflection. Ulexite was named for the German chemist Georg Ludwig Ulex (1811
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• (n.) A mineral occurring in white rounded crystalline masses. It is a hydrous borate of lime and soda.
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borate mineral, NaCaB5O6(H)65H2O, that consists of hydrated sodium and calcium borate. Individual crystals are colourless and have a vitreous lustre, ... [1 related articles]
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http://www.britannica.com/eb/a-z/u/4
Ulexite or hayesine is an evaporate mineral and an ore of boron. It is formed during the evaporation of lake basins and occurs in white rounded crystalline masses. It is a hydrous borate of lime and soda and has a relative hardness of 2. Ulexite was named in honour of George Ulex, the German chemist who in 1850 first correctly analysed the mineral....
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(Hydrated Sodium Calcium Borate Hydroxide) Ulexite, like other borates, is a structurally complex mineral. The basic structure of ulexite contains chains of sodium, water and hydroxide octahedrons linked in endless chains. The chains are linked together by calcium, water, hydroxide and oxygen polyhedra and massive boron units. T...
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a mineral, hydrous sodium and calcium borate, NaCaBO&multiplydot;8HO, occurring in arid regions in the form of white acicular crystals: a major source of borax.
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