Stannoidite-Canfieldite Association as Related to Vein Mineralization at the Ashio Copper Mine, Japan Nakamura Takeshi Akiwa Nobuyuki 大阪市立大学 Journal of geosciences, Osaka City University 04492560 16 0 1 10 1973 1973 110000003421 AA00252439 ENG NII-ELS 0 Stannoidite-Canfieldite Association as Related to Vein Mineralization at the Ashio Copper Mine, Japan Nakamura Takeshi Akiwa Nobuyuki Osaka City University Journal of geosciences, Osaka City University Nakamura Takeshi Akiwa Nobuyuki