arsenopyrite


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Related to arsenopyrite: pyrrhotite, molybdenite
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Synonyms for arsenopyrite

a silver-white or grey ore of arsenic

References in periodicals archive ?
Mineralization in hole TOG-13-25 is described as strongly albitized and silicified conglomerate and porphyry units containing 1 to 8 percent finely disseminated pyrite with local arsenopyrite.
The two most widely quoted hypotheses are the oxidation of Arsenopyrite and Pyrite minerals and the reduction of Iron Oxyhydroxides.
Oxidized arsenopyrite grains were identified in the thin sections using SEM in the backscattered electron mode, and the FIB was used to prepare two sections for (S)TEM analysis from specified locations at the margins of two arsenopyrite grains (Fig.
Between 80 and 85% of the gold occurs as free gold, the remainder being entrained within arsenopyrite and other sulphide grains.
Mineralization is associated with siderite-albite veins and breccias with chalcopyrite, arsenopyrite, pyrite, and their oxidized equivalents.
Relatively recent metallurgical advancements that will be investigated include the creation of an arsenopyrite concentrate that could contain significant gold mineralization.
Assays of samples collected by Sovereign Gold from the mineralised high-grade sulphide vein (quartz, arsenopyrite, pyrite and galena) ranged from:
COMINCO historical reports describe the Discovery Zone as an area of quartz-carbonate veining in argillite measuring 35 by 6 metres, carrying pyrite, arsenopyrite, pyrrhotite, galena, sphalerite, chalcopyrite and minute particles of free gold.
Most environmental arsenic occurs naturally, appearing in deposits of minerals and ores including arsenopyrite, enargite, and proustite.
Occurrence: A secondary mineral resulting from the alteration of arsenopyrite.
WGC-11-34B (-70 degree dip at 90 degree azimuth) encountered vein quartz carbonate veins with arsenopyrite and pyrite in two zones from 115.
It has been reported that arsenopyrite gold concentrate grades of 150 g/t (5 oz) and higher are common, given the high-grade material that is processed.