tenorite


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tenorite

(ˈtɛnəˌraɪt)
n
(Minerals) a black mineral found in copper deposits and consisting of copper oxide in the form of either metallic scales or earthy masses. Formula: CuO
[C19: named after G. Tenore (died l861), Italian botanist]
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It was found that in copper containing mixture cinnabar acted as a reducing agent which transformed tenorite (CuO) to Cuprite (Cu2O) however by the addition of sulphur to mixture tenorite was not reduced to cuprite and copper sulfide was formed at temperatures between 300-500oC and transformed to CuSO4 and (CuO.
From the SEM image of CuO nanoparticles it can be seen that the particles shape with different temperature are various, while the morphology of the tenorite nanoparticles in the previous work were of rod shape [15].
The vehicle features an exterior in Tenorite Grey Metallic, a leather-upholstered sofa bed, a flat-screen TV, several closets, a small kitchen equipped with a sink, a stove and a fridge, a bathroom that features a toilet and a shower and two swivel seats upholstered in white leather.
Native copper and tenorite (copper oxide) were noted in gossans 'beneath the soil' above some of the virgin copper veins in the 18th/19th century (Lentin 1800).
In the same small zone in the Cumbres lugar of the Ojuela mine which produced the claringbullite, a few specimens of tenorite pseudomoiphs after paramelaconite were found as microcrystals, as well as brochantite.
The vehicle is available in Carneol Red, Obsidian Black, Calcite White, Tenorite Grey, Iridium Silver and Cubanite Silver colours.
The specimens show bright baby-blue chrysocolla completely replacing octahedral and cuboc-tahedral crystals to 6 mm; some of the pseudocrystals rest in veins in a matrix mixture of black tenorite, blue massive chrysocolla, and white calcite.
The copper mineralization occurs primarily as disseminated and fracture-coating malachite with minor tenorite, azurite and chalcopyrite in association with quartz stockworks, quartz veinlets and several different host-rock lithologies.
2003) This study Azurite X X Barite X Brochantite X X Chalcocite X X Chalcanthite X Chrysocolla X X Copper X X Covellite X Cuprite X X Delafossite X Malachite X X Neotocite X Plancheite X Tenorite ("melaconite") X X
The mineralization present is in the form of tenorite, cuprite, native copper, malachite, azurite and atacamite.
Gordon (1944) found black massive tenorite with chalcanthite in the Rosas vein.
In the oxidized zones and in areas of recrystallization on secondary fault plains and cavities, chalcocite, cuprite, tenorite, malachite, azurite, chrysocolla, and various sulfates replace the original copper sulfides.