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Aerugite is a rare complex nickel arsenate mineral with a variably reported formula: Ni9(AsO4)2AsO6. It forms green to deep blue-green trigonal crystals. It has a Mohs hardness of 4 and a specific gravity of 5.85 to 5.95.
Additional recommended knowledge
It was first described in 1858 in either the South Terres mine of Cornwall, England or in Erzgebirge, Saxony, Germany. The origin is disputed. The most common occurrence is as an incrustation on furnace walls in which ores are roasted. Its name comes from the Greek word aerugo for copper rust.
|This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Aerugite". A list of authors is available in Wikipedia.|