TELURIUM

The tellurium is a chemical element of the periodic table which symbol is You and his atomic number is 52.
The tellurium can obtain cocktail with gold in the calaverita, a metallic relatively slightly abundant mineral.
The tellurium (of Tellus, land) was discovered by Franz Muller von Reichenstein in 1782. The tellurium was in use as additive of the steel for increasing initially his ductility, as polisher in electroplateados and as additive in catalysts for the catalytic disintegration of the oil.

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