pseudomalachite

pseudomalachite

[¦sü·dō′mal·ə‚kīt]
(mineralogy)
Cu5(PO4)2(OH)4·H2O An emerald green to dark green and blackish-green, monoclinic mineral consisting of a hydrated basic copper phosphate. Also known as tagilite.
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References in periodicals archive ?
Economic mineralisation in the oxide zone ins primarily malachite, pseudomalachite and chrysocolla, with heterogenite the main oxide cobalt mineral.
Economic mineralization in the oxide zone is primarily malachite, pseudomalachite and chrysocolla with heterogenite as the major oxide cobalt mineral.
In the Northparkes E22 and E27 deposits at Goonumbla, New South Wales, upper oxidation zones are dominated by libethenite and pseudomalachite, with azurite and malachite emplacement at greater depths.
Chrysocolla is the predominant mineralisation within the oxide ore, but there is also pseudomalachite in abundance.
Terry Szenics had some exceptional specimens of well crystallized pseudomalachite from a new find at the Manto Cuba mine at Inca de Oro, Chile.
These include sicklerite, purpurite, hureaulite, phosphosiderite, strengite, stewartite, eosphorite, robertsite, mitridatite, jahnsite, fairfieldite, hopeite, and pseudomalachite.
Associated minerals are: orthoclase, chalcocite, covellite, pseudomalachite, chalcosiderite/turquoise, ulrichite, libethenite, torbernite and iodargyrite.
Sprays of bright olive-green libethenite crystals were again found but this time tsumebite, pseudomalachite and pyromorphite were found in addition to plumbogummite and crandallite.
Namibite also has been identified from the Stewart mine, Pala district, with associated chrysocolla and pseudomalachite (Foord, 1996).
Jordi Fabre (in his "fishbowl" booth in the main lobby of the Executive Inn - his flyer shows a swimming fish with Jordi's face on it grinning out from a bowl) kept busy mostly by selling Spanish pyromorphite (next paragraph): but I found interesting, too, the 20 or so miniatures of newly mined pseudomalachite from Vilavicosa, Estremoz, Portugal.
These are often overlooked in oxidized ores, although pseudomalachite, [Cu.
As a result of the metallurgical problems, X-ray diffraction studies were undertaken back in Cape Town where it was discovered that a principal "oxide" ore, previously described as malachite or pseudomalachite, was in fact brochantite, an extremely easy mineral to acid-leach but not simple to float.