Copper pseudomorphs after another isometric mineral, apparently cuprite, are known in excellent, though rare, specimens. |
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Associated minerals were calcite, copper, cuprite, tenorite, and malachite. |
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Some of the finest cuprite specimens ever found have come from the oxidized zones of several of Arizona's porphyry copper and related deposits. |
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The mine is well known for the rare secondary copper minerals that occur in the lode, including paramelaconite, cuprite, malachite, and dioptase. |
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Other exciting occurrences of cuprite and associated secondary minerals will no doubt be discovered as new mines are developed. |
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Similar malachite masses weighing up to 3 tons as well as malachite pseudomorphs after cuprite crystals to 2 cm have been found in the mine. |
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Associated minerals are olivenite, chalcophyllite, clinoclase, comwallite, strashimirite, malachite, azurite, and cuprite. |
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Often, the powdery azurite encloses a small grain of cuprite, forming a blue halo that disperses into the siltstone. |
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Other secondary copper minerals associated with the chrysocolla are malachite, cuprite, and tenorite. |
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The highly fractured felsite is cemented by veinlets of chrysocolla and malachite with minor amounts of cuprite. |
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One is a copper sulfate assemblage, which is generally associated with copper carbonates, cuprite, sulfides, boltwoodite, and metazeunerite. |
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Copper, Cu, has been found associated with cuprite octahedra at Pedra Preta, where these minerals occur on talc and magnesite. |
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Copper and its alloys most commonly alter to the green or blue carbonates of copper, malachite, or azurite or to the red-oxide mineral cuprite. |
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People have been mining these hills for copper, cuprite and chalcocite since before recorded history. |
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At the Kingston mine, calcite occurred as thin massive veins cutting the lode and as modified rhombohedral crystals to 7 mm with inclusions of cuprite and chalcocite. |
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Ultra fine, phase pure, octahedral cuprous oxide nanoparticles with cuprite structure were synthesized in the lab. |
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The beautiful patina shows traces of malachite, cuprite and azurite. |
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Oxide mineralization consists of cuprite, azurite, malachite, chrysocolla and minor native copper. |
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Oxide copper mineralization comprises cuprite, malachite, azurite, native copper and chrysocolla. |
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Oxide mineralization consists of minor quartz veining associated with pitch limonite, cuprite, chrysocolla, malachite, and azurite. |
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Oxide mineralization comprises azurite, cuprite and minor malachite, chrysocolla, neotocite, pitch limonite and native copper. |
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Oxide mineralization consists of limonite, cuprite, azurite, malachite, chrysocolla and native copper. |
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On coming into contact with the acids and other compounds occurring in the earth or in the air, this cuprite is converted into salts which, as time passes, turn into crystals of various colours. |
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The piece is richly chiselled with a very delicate geometric décor and bears a beautiful patina dominated by green and red, the colours of cuprite and malachite. |
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The base of oxidation was noted at 406m and mineralization consists of cuprite, pitch limonite, chrysocolla, neotocite, malachite and native copper. |
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The intensity of mineralization generally decreases below 500m and comprises quartz-limonite veinlets, azurite, malachite, cuprite, and minor chrysocolla. |
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Cuprite occurred along with chalcocite as inclusions in small calcite crystals. |
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Cuprite was found mainly as red encrustations associated with azurite and malachite on copper. |
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Mapping Advanced Argillic Alteration at Cuprite, Nevada, Using Imaging Spectroscopy. |
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