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Main characteristics of antimony ores in Hunan-Guangxi area



Main characteristics of antimony ores in Hunan-Guangxi area



Bulletin of the Institute of Mineral Deposits, Chinese Academy of Geological Sciences 1989(1): 119-130



There exist rich antimony resources and a considerable variety of ore types in the Hunan-Guangxi area. Based on typical elements or mineral assemblages of the ores and hydrothermal alterations, the authors group the economic antimony ores into three formations: a stibnite silicified formation, an antimony-gold-tungsten formation and an antimony-polymetallic formation. From the first formation to the last, the mineral composition and assemblage of the ores become more complex, and the texture and structure of the ores change greatly. The formation temperatures of the ores vary between 388 degrees C and 90 degrees C and those of the antimony minerals are within the range of 255-120 degrees C. The ore-forming pressures are rather low (102-21m). The ore-bearing fluids are related to hot brine, metamorphic water or hot groundwater with low salinity and mixed solutions of varied origins. The minerogenic elements, such as antimony and sulfur, are derived from the country rocks or the mixed source of magma and country rocks.

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Accession: 019361983

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