Tags: Chemical Substance, Mineral.

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-Calcite-40062.jpg

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