An Unusual Texture: Skeletal Sphalerite in Pyrite from Dajing Tin-polymetallic Deposit, China |
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| Authors: | Yu Wang Wang Jing Bin Wang Li Juan Wang |
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| Institution: | Key Laboratory of Mineral Resources, Institute of Geology and Geophysics, Chinese Academy of Sciences, A-11 Datun Road, Chaoyang District, Beijing 100 101, China [e-mail: ];Beijing Institute of Geology for Mineral Resources, Beijing 100012, China |
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| Abstract: | Abstract. Skeletal sphalerite with stellar, cruciform and snowflake-like (or cauliflower-like) shapes included in pyrite is widely found in the Dajing tin-polymetallic deposit. It occurs only in chalcopyrite-pyrite mineralization stage. The compositions of all sphalerites in the chalcopyrite-pyrite stage are characterized by high Cu content (3.9 - 7.0 wt% with a mean of 5.4 wt%), while the skeletal crystal sphalerite has higher zinc and cadmium contents, and lower copper and iron contents, compared with other sphalerites of the same stage. The skeletal crystal sphalerite in pyrite is possibly generated by exsolution. |
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| Keywords: | skeletal sphalerite in pyrite sphalerite star texture Dajing China |
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