MINERALOGICAL FEATURES OF CHALCOPYRITE AND SPHALERITE IN COPPER-PYRITE MILL TAILINGS IN THE LIGHT OF PROSPECTS FOR THE PURPOSEFUL FORMATION OF MAN-MADE DEPOSITS
E. A. Gorbatova1,2, E. G. Ozhogina2, M. V. Ryl’nikova1, D. N. Radchenko1
1Institute of Comprehensive Exploitation of Mineral Resources, Russian Academy of Sciences, Moscow, 111020 Russia
2Fedorovsky All-Russian Scientific Research Institute of Mineral Resources, Moscow, 119017 Russia
Keywords: Медноколчеданные месторождения, минералогические особенности, кристаллохимическая формула, растровая электронная микроскопия, хвосты обогащения, халькопирит, сфалерит, примесный состав, техногенные месторождения, целенаправленное формирование, комплексное освоение, Copper-pyrite deposits, mineralogical features, crystal-chemical formula, scanning electron microscopy, mill tailings, chalcopyrite, sphalerite, admixture composition, man-made deposits, purposeful formation, comprehensive exploitation
Abstract
The purposeful formation of man-made deposits is connected with the creation of such conditions that waste acquires preset process properties while stored. This will enable future environmental clean processing of waste. Aiming to determine general mechanisms of formation of process properties in copper-pyrite mill tailings, the comprehensive analysis of mineralogical composition of tailings from three concentration plants processing ore from six large copper-pyrite deposits in South Ural was performed. The crystal-chemical formulas of the basic ore minerals are studied and systematized. The morphological varieties of ore minerals are identified. It is found that even in case of deposits of the same genetic type, regimes and parameters of processing current mill tailings depend on the initial mineralogical features of waste based on which man-made deposits are formed. These features have influence on the mechanisms and stages of the secondary minerogenesis in the man-made deposits.
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