Annabergite

Annabergite

Annabergite is a mineral consisting of a hydrous nickel
arsenate, Ni3(AsO4)2·8H2O, crystallizing in the monoclinic system and isomorphous with vivianite and erythrite. Crystals are minute and capillary and rarely met with, the mineral occurring usually as soft earthy masses and encrustations. A fine apple-green colour is its characteristic feature. It was long known (since 1758) under the name nickel ochre; the name annabergite was proposed by H. J. Brooke and W H. Miller in 1852, from Annaberg in 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 Creetown in Kirkcudbrightshire, in which a portion of the nickel is replaced by calcium, has been called "dudgeonite", after P. Dudgeon, who found it.

Closely related is "cabrerite" wherein some of the nickel is replaced by magnesium. It is named for Sierra Cabrera in Spain where it was originally found.

References

*1911


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Look at other dictionaries:

  • Annabergite — Catégorie VIII : phosphates, arséniates, vanadates[1] Annabergite (Variété cabrérite) sur sidérite …   Wikipédia en Français

  • annabergite — ● annabergite nom féminin (de Annaberg, ville d Allemagne) Arséniate hydraté de nickel …   Encyclopédie Universelle

  • annabergite — [an′ə bʉrg΄īt΄] n. [after Annaberg, town in Germany + ITE1] the light green variety of erythrite, (Ni, Co) 3 (AsO4) 2·8H2O, in which nickel replaces the cobalt; hydrous cobalt nickel arsenate …   English World dictionary

  • annabergite — ˈanəˌbərˌgīt noun ( s) Etymology: Annaberg, Saxony, Germany, its locality + English ite : a mineral consisting of a hydrous nickel cobalt arsenate (Ni,Co)3(AsO4)2.8H2O occurring in apple green masses or capillary crystals and isomorphous with… …   Useful english dictionary

  • annabergite — anabergitas statusas T sritis chemija apibrėžtis Mineralas. formulė Ni₃[AsO₄]₂·8H₂O atitikmenys: angl. annabergite rus. аннабергит …   Chemijos terminų aiškinamasis žodynas

  • annabergite — /an euh berr guyt/, n. a mineral, hydrous nickel arsenate, Ni3As2O8·8H2O, occurring in apple green masses and isomorphous with erythrite. [named after Annaberg, a town in E Germany where first found; see ITE1] * * *       hydrated nickel arsenate …   Universalium

  • annabergite — noun A mineral consisting of a hydrous nickel arsenate, chemical formula Ni(AsO)·8HO, with an apple green colour …   Wiktionary

  • annabergite — an·na·berg·ite …   English syllables

  • annabergite — /ˈænəˌbɜgaɪt/ (say anuh.berguyt) noun a mineral, hydrous nickel arsenate, Ni3As2O8.8H2O, occurring in apple green crystalline masses; nickel bloom. {named after Annaberg, town in Saxony. See ite1} …  

  • Аннабергит — Формула Ni3[AsO4 …   Википедия

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