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Showing: 1 to 10 of 1910 matches for "economic value of CHALCOPYRITE"  Page   1   2   3   4   5   6   7   8   9  next TITLE Concentration - Mill Flowsheets and Practices - Milling Lead-zinc Ores at Iron King Mine, Prescott, Arizona (Mining Tech., July 1947, TP 2191)  SUMMARY ... It shows that important in the economic value of the the bulk of the recovered ... determined to be highest in association with chalcopyrite and arsenopyrite. ... AUTHOR Hendricks, H. R. PUBLISHED 1949 TITLE Some Aspects of the Carbonaceous Fraction of Mount Isa Lead Concentrate  SUMMARY ... and to a less extent by sphalerite, pyrrho- tite and chalcopyrite with the ... times of low metal prices this fraction seriously reduces the economic value of the ... AUTHOR Draper N ; Harraway D H PUBLISHED 1961 TITLE Quantitative Mineral Analysis of Ores and Minerals Processing Products using X-ray Diffraction  SUMMARY ... Mineral analysis is a major factor in evaluating the economic value of the ore ... sphalerite for Mount Isa lead/zinc samples and copper in chalcopyrite for Mount ... AUTHOR N W Johnson PUBLISHED 1998 TITLE Ottawa Paper - The Geological Relations of the Principal Nova Scotia Minerals.  SUMMARY ... with the gold in the quartz-veins, but not in amounts of economic value. ... The ore is chalcopyrite with erubescite, and carries considerable amounts of gold and ... AUTHOR Gilpin, E., Jr. PUBLISHED 1890 TITLE Metasomatism Near The Corinthian Ore-Body, Western Australia  SUMMARY ... all contained equally low gold content and the potential economic value of the ... abundant iron sulphides-mainly pyrrhotite and a little pyrite and chalcopyrite. ... PUBLISHED 1942 TITLE Typological Classification Of Gold Deposits Of The Brazilian Shield  SUMMARY ... Sul: The deposits consist of numerous veins of pyroxene-andesite dikes mineralized with pyrite, chalcopyrite and gold ... The protore can be of economic value or not ... AUTHOR de Ferran, A. PUBLISHED 1998 TITLE Metallurgical Performance Models to Improve Cut-Off Grade Determination at Mount Isa Mines  SUMMARY ... Chalcopyrite 34.65% 30.46% 34.89% ... NET SMELTER RETURN (NSR) How can we use this model to better predict the economic value of mineralisation in the geological ... AUTHOR M Johnston ; J Simpson PUBLISHED 2003 TITLE Prospecting, Examination and Description of Deposits - Barite Deposits of Central Missouri (Mining Tech., Sept. 1947, T.P. 2246)  SUMMARY ... filled with barite (Fig 7), and small amounts Breccia deposits of barite are rarely of of galena, sphalerite, chalcopyrite, calcite, economic value, as the ... AUTHOR Mather, W. B. PUBLISHED 1948 TITLE The Underutilised Role for Economic Geologists and Geochemists in Environmental Aspects of Mineral-Resource Development  SUMMARY ... serlclte-pyrlte alteredIgneousrocks • Pyrlte-sphalerlte-galena-chalcopyrite Incarbonate-poor ... The potential economic value of the mine drainage waters could ... AUTHOR K S Smith PUBLISHED 1995 TITLE Papers - Barite Deposits in North Carolina (With Discussion)  SUMMARY ... the Hot Springs and Kings Mountain -contain material of economic value. ... barite, fluorite, quartz, sericite, calcite, pyrite, galena, chalcopyrite and sphal ... AUTHOR Stuckley, Jasper L. ; Davis, Harry T. PUBLISHED 1935 Showing: 1 to 10 of 1910 matches for "economic value of CHALCOPYRITE"  Page   1   2   3   4   5   6   7   8   9  next Search Again