5 relations: Arsenate minerals, Hermann–Mauguin notation, Monoclinic crystal system, Namibia, Tsumeb.
Arsenate minerals
Arsenate minerals usually refer to the naturally occurring orthoarsenates, possessing the (AsO4)3− anion group and, more rarely, other arsenates with anions like AsO3(OH)2− (also written HAsO42−) (example: pharmacolite Ca(AsO3OH).2H2O) or (very rarely) − (example: andyrobertsite).
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Hermann–Mauguin notation
In geometry, Hermann–Mauguin notation is used to represent the symmetry elements in point groups, plane groups and space groups.
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Monoclinic crystal system
In crystallography, the monoclinic crystal system is one of the 7 crystal systems.
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Namibia
Namibia, officially the Republic of Namibia (German:; Republiek van Namibië), is a country in southern Africa whose western border is the Atlantic Ocean.
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Tsumeb
Tsumeb (Otjiherero name: Okavisume) is a city of 15,000 inhabitants and the largest town in Oshikoto region in northern Namibia.
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