Resource Evaluation of Indium in the Dajing Tin-Polymetallic Deposits, Inner Mongolia, China |
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Authors: | Shunso Ishihara Kezhang Qin Yuwang Wang |
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Institution: | Geological Survey of Japan, AIST, Tsukuba, Japan; , Institute of Geology and Geophysics, Chinese Academy of Sciences; and Beijing Institute of Geology for Mineral Resources, Beijing, China |
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Abstract: | Individual ores of 37 specimens and five mill concentrates were analyzed chemically, and anomalous indium contents were detected in the tin‐polymetallic veins of the Dajing mine. The indium contents are heterogenously distributed (0.5–296 ppm In), and are low generally in the ores of the East Block. Indium is mainly correlated with copper, partly with zinc in the Dajing deposits, implying that the element is substituted in copper and zinc sulfides and sulfosalts. The total indium content is expected as >768 tons, which is lower than a previous estimation of this mine. The whole tonnage of the southern part of the Da Hinggang Mountains is >1200 tons In, which is the second largest in China after the tin‐polymetallic deposits in the southern China. |
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Keywords: | China Dajing Indium Inner Mongolia polymetallic tin |
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