자원환경지질 (Economic and Environmental Geology)
- 제13권4호
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- Pages.205-213
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- 1980
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- 1225-7281(pISSN)
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- 2288-7962(eISSN)
Cu-Fe-Sn-S계(系) 광물(鑛物)의 산출상태(産出狀態)와 상안정관계(相安定關係)
Occurrences and Phase Stability Relations of Minerals of the Cu-Fe-Sn-S System
초록
Stannite is mainly found in hypothermal ore deposits, whereas mawsonite and stannoidite occur characteristically with bornite and chalcopyrite in subvolcanic (xenothermal) ore deposits. Mawsonite always shows the replacement on the rims of stannoidite grains or along the grain boundaries of stannoidite, bornite and chalcopyrite. In the Tada mine, Japan, the following mineral assemblages of the Cu-Fe-Sn-S minerals were observed. 1) bornite-stannoidite; 2) stannoidite-chalcopyrite; 3) stannite-chalcopyrite; 4) bornite-mawsonite-stannoidite; 5) bornite-stannoidite-chalcopyrite; 6) mawsonite-stannoidite-chalcopyrite; 7) stannoidite-stannite-chalcopyrite; 8) bornite-mawsonite-stannoidite-chalcopyrite The heating and D.T.A. experimental results indicate that natural stannoidite containing 3 weight percent of zinc decomposes to bornite, stannite and chalcopyrite at above
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