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Related to Libethenite: malachite


n.1.(Min.) A mineral of an olive-green color, commonly in orthorhombic crystals. It is a hydrous phosphate of copper.
References in periodicals archive ?
The standards selected for Cu were azurite ([Cu.sub.3][(C[O.sub.3]).sub.2][(OH).sub.2]), calcosiderite (Cu,[Fe.sub.6][(P[O.sub.4]).sub.4][(OH).sub.8].4([H.sub.2]O O)), cuprite ([Cu.sub.2]O), libethenite ([Cu.sub.2](P[O.sub.4])(OH)), malachite ([Cu.sub.2](C[O.sub.3])[(OH).sub.2]), nissonite ([Cu.sub.2][Mg.sub.2][(P[O.sub.4]).sub.2][(OH).sub.2].5([H.sub.2]O)), pseudomalachite ([Cu.sub.5][(P[O.sub.4]).sub.2][(OH).sub.4]), tenorite (CuO), and CuS[O.sub.4].
(1978) Libethenite from the Rokana mine, Zambia [Zambian Copperbelt].
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.
Last, but not least, he had libethenite in dark green microcrystals from the Los Azules mine, Quebrada San Miguel mining district, near Paipote, Chile.
[square] v.1/n.4 Colombian Emerald, Natrolite (OR), Benstonite (IL), Langban (Sweden) $30 [square] v.8/n.5 Characterization of New Species, Twinning, Axinite (Brazil), Green River (WY) [square] v.9/n.4 Elmwood mine (TN), Chester (MA), Pyrite crystal forms [square] v.9/n.5 Kammererite (Turkey), Afghanistan pegmatites, Chuquicamata, Chile [square] v.9/n.6 Libethenite (Zambia), Quartz/Pyrite (Washington), Hydroboracite (CA) [square] v.10/n.1 Hydroxylherderite (Brazil), References on American Minerals [square] v.10/n.2 Jeffrey mine (Quebec), Alpine Rodingites, Fluorite (Germany) [square] v.10/n.3 Taewha mine (Korea), Quartz Japan-law Twins, Bancroft (Ontario) [square] v.10/n.5 Thomas and Wah Wah Mountains (UT) Topaz, Red Beryl, Etc.
Most interesting were several small specimens covered with tiny dark green libethenite crystals; I bought these for less than a song, and two days later the geologist showed up at the hotel with about 200 more libethenite specimens.
Associated minerals include malachite, libethenite and an unidentified iron oxide species.
Associated minerals are: orthoclase, chalcocite, covellite, pseudomalachite, chalcosiderite/turquoise, ulrichite, libethenite, torbernite and iodargyrite.
Some of the minerals occurring at the Mex-Tex mine (coronadite, crandallite, creedite, libethenite, plumbogummite, tsumebite and turquoise) have not been found at the Blanchard mine or elsewhere in the district.
The chemistry of formation of chrysocolla, -Cu[H.sub.2]Si[O.sub.4][center dot][H.sub.2]O, pseudomalachite, libethenite, [Cu.sub.2]P[O.sub.4]OH, and cornetite, [Cu.sub.3]P[O.sub.4][(OH).sub.3], has been described (Williams, 1990, 1996) and can be related to general weathering processes and reported mineral assemblages.
Other associated minerals include carbonate-fluorapatite, copper, kaolinite, libethenite, pseudomalachite, quartz and volborthite.
Additional species from the mine include libethenite, pseudomalachite, turquoise crystals (to 0.5 mm), and crude tiny phosgenite crystals--all as microcrystals.