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ANNABERGITE

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Originally appearing in Volume V02, Page 59 of the 1911 Encyclopedia Britannica.
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ANNABERGITE , a See also:

mineral consisting of a hydrous See also:nickel arsenate, Nia(AsO4)z+8HZO, crystallizing in the See also:monoclinic See also:system and isomorphous with See also:vivianite and See also:erythrite. Crystals are See also:minute and capillary and rarely met with, the mineral occurring usually as soft earthy masses and encrustations. A See also:fine See also:apple-See also:green See also:colour is its characteristic feature. It was See also:long known (since 1758) under the name nickel-ochre; the name annabergite was proposed by H. J. See also:Brooke and W H. See also:Miller in 1852, from See also:Annaberg in See also:Saxony, one of the localities of the mineral. It occurs with ores of nickel, of which it is a product of alteration. A variety, from See also:Creetown in See also:Kirkcudbrightshire, in which a portion of the nickel is replaced by See also:calcium, has been called dudgeonite, after P. Dudgeon, who found it. (L. J.

End of Article: ANNABERGITE

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