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Andyrobertsite - Wikipedia, the free encyclopedia
Andyrobertsite is a rare, complex arsenate mineral with formula KCdCu 5 (AsO 4 ) 4 [As(OH) 2 O 2 ] . 2H 2 O. It is found in the Tsumeb mine in Namibia.
en.wikipedia.org/wiki/Andyrobertsite |
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The Cd analogue of calcioandyrobertsite . Structurally related to the Lavendulan Group . ... Classification of Andyrobertsite ... Type Occurrence of Andyrobertsite...
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- Moritz, H. (1933) Die sulfidischen Erze der Tsumeb-Mine vom Ausgehenden bis zur XVI Sohle (-460 m). Neues Jahrbuch für Mineralogie, Abhandlungen A, B.-Bd.: 67: 118-153. - Strunz, H., Geier, B.H., and Seeliger, E. ... Neues Jahrbuch für Mineralogie (1958), Monatshefte: ... Home Page Log In Message Board The Mindat Directory...
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Variation in the occupancy of this site gives rise to the two related species andyrobertsite (Cd dominant) and calcio-andyrobertsite (Ca dominant). There is one distinct K site occupied by K and coordinated by four O atoms, two (OH) groups and two (H2O) groups in a distorted-cube arrangement.
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: its description, crystal structure and relation with calcio-andyrobertsite-1M Halil SARP1 and Radovan KERN 2,* ... Calcio-andyrobertsite-2O, ideally, CaCu5AsO4[AsO4(AsO2] · 2H2O, is a polytype of calcio-andyrobertsite-1 M, and occurs in a specimen of quartz gangue found at the Tsumeb mine, Namibia,
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Order from the British Library: Calcio-andyrobertsite-2O, KCaCu~5(AsO~4)~4 [AsO~2(OH)~2]·2H~2O: its description, crystal structure and relation with ...
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General Andyrobertsite Information ... Andyrobertsite Image ... Andyrobertsite Crystallography...
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Search Webmineral : ... Single specimen found at the mine. Forms a series with andyrobertsite. ... Calcio-andyrobertsite-1M - Renamed Calcioandyrobertsite-1M by Mineralogical Record, v39 (2008), p131...
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Calcio-andyrobertsite-2O, ideally KCaCu5(AsO4)4[AsO2(OH)2]·2H2O, is a polytype of calcio-andyrobertsite-1M and occurs in a specimen of quartz gangue found ...
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Very similar sheets are found in andyrobertsite, calcio-andyrobertsite(-1M), calcio-andyrobertsite-2O, richelsdorfite, and probably bleasdaleite, mahnertite, lemanskiite and the inadequately characterized, lavendulan-related species shubnikovite.
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