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ATACAMITE

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Originally appearing in Volume V02, Page 822 of the 1911 Encyclopedia Britannica.
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ATACAMITE , a See also:

mineral found originally in the See also:desert of See also:Atacama, and named by D. de Gallizen in 18oi. It is a cupric oxychloride, having the See also:formula CuC12.3Cu(OH)2, and crystallizing in the orthorhombic See also:system. Its hardness is about 3 and its specific gravity 3.7, while its See also:colour presents various shades of See also:green, usually dark. Atacamite is a comparatively rare mineral, formed in some cases by the See also:action of See also:sea-See also:water on various See also:copper-ores, and occurring also as a volcanic product on Vesuvian lavas. Some of the finest crystals have been yielded by the See also:ATALANTA copper-mines of See also:South See also:Australia, especially at See also:Wallaroo. It occurs also, with See also:malachite, at Bembe, near See also:Ambriz, in See also:West See also:Africa. From one of its localities in See also:Chile, Los Remolinos, it was termed Remolinite by See also:Brooke and See also:Miller. Atacamite, in a pulverulent See also:state, was formerly used as a See also:pounce under the name of " Peruvian green See also:sand," and was known in Chile as arsenillo. (F. W.

End of Article: ATACAMITE

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