Brassite
Encyclopedia
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 - dipyramidal.
Mineral
A mineral is a naturally occurring solid chemical substance formed through biogeochemical processes, having characteristic chemical composition, highly ordered atomic structure, and specific physical properties. By comparison, a rock is an aggregate of minerals and/or mineraloids and does not...
with the chemical formula Mg(AsO3OH)·4(H2O). It is found in the Czech Republic
Czech Republic
The Czech Republic is a landlocked country in Central Europe. The country is bordered by Poland to the northeast, Slovakia to the east, Austria to the south, and Germany to the west and northwest....
. It is white and leaves a white streak. It has perfect cleavage
Cleavage (crystal)
Cleavage, in mineralogy, is the tendency of crystalline materials to split along definite crystallographic structural planes. These planes of relative weakness are a result of the regular locations of atoms and ions in the crystal, which create smooth repeating surfaces that are visible both in the...
. Its crystals are orthorhombic - dipyramidal.