| Nokleberg, W.J., ed., (2010) Metallogenesis and tectonics of northeast Asia: U.S. Geological Survey Professional Paper 1765, 624 p. Sadanaga, Ryoichi, Bunno, Michiaki (1974) The Wakabayashi Mineral Collection. Bulletin 7. The University Museum, The University of Tokyo William Sanborn collection (collected 1938) Tribbey collection #444 |
Obira Mine, Bungo-Ono City, Oita Prefecture, Japan