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Brassite is a mineral with the chemical formula Mg(AsO3OH)·4(H2O). It is found in the Czech Republic. It is white and leaves a white streak. It has perfect cleavage. Its crystals are orthorhombic to dipyramidal.

This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Brassite". A list of authors is available in Wikipedia.
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