Process mineralogy VII : applications to mineral beneficiation technology and mineral exploration, with special emphasis on disseminated carbonaceous gold ores : proceedings of a symposium presented in seven sessions on Process Mineralogy held during the Metallurgical Society Annual Meeting, Denver, Colorado, February 23-27, 1987 - Vassiliou, Andreas H.; Hausen, Donald M.; Carson, David J. T. (Metallurgical Society, 1987)