著者

原田 一雄 児玉 秀臣

出版者

Japan Association of Mineralogical Sciences

雑誌

岩石鉱物鉱床学会誌 (ISSN:00214825)

巻号頁・発行日

vol.49, no.3, pp.115-118, 1963-03-05 (Released:2008-08-07)

参考文献数

6

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A new occurrence of freibergite from the Chichibu Mine is described. The freibergite, which was found from the upper part of the Daikoku ore deposits, associated with pyrite, euhedral crystal of chalcopyrite, bornonite, ankerite and quartz. Mineralogical properties of the mineral are as follows; 1. euhedral, tetrahedral crystal about 1cm in diameter. 2. streak color, reddish brown. 3. ao=10.435A. 4. the spectrochemical analysis shows the presence of the major amounts of Cu, Ag and Sb, minor amounts of Fe, As and Si, and trace of Zn, Pb and Cd.