Wavellite

The wavellite , or zépharovichite is a mineral classified in phosphates.

Its chemical formula is Al3 (PO4) 2 (OH) 3×5H2O. Its acicular crystals form fibroradiés aggregates spherulitic.

The principal layers are with the Brésil, in Bolivia, England and in the United States in the Arkansas, the Colorado and the Pennsylvania.

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