Mineralogical Examination of Gold Processing Plant Tailings
V. I. Bragin1,2, V. A. Makarov1, N. F. Usmanova1,2, P. N. Samorodskii1, B. M. Lobastov1, A. I. Vashlaev1,2
1Siberian Federal University, Krasnoyarsk, 660041 Russia
2Institute of Chemistry and Chemical Technology, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, 660036 Russia
Keywords: Золотосодержащие сульфидные и окисленные руды, хвосты обогащения, вторичные минеральные формы, гипергенные преобразования, Sulphide and oxidized gold ore, tailings, secondary mineral forms, supergene transformations
Abstract
The results of the mineralogical examination if of old sulphide and oxidized gold ore tailings of a mining and processing plant in the Krasnoyarsk Territory are presented. Secondary mineral forms of antimony, namely, antimony bloom Sb2O3 and tripuhyite FeSBO4, as well as iron are found. Gypsum in the waste is a newly formed phase, undetected in the initial ore, revealed in sulphide and mixed ore tailings and is absent in oxidized ore tailings. The key valuable component is gold represented by fine accretions in arsenopyrite, free gold size is not more than a few first microns.
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