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Japan | |
| Dr. Matsuo Nambu collection (curated at Geological Survey of Japan) |
| Frank K. Mazdab collection (thin section FKM-190) |
| Dr. Kameki Kinoshita collection (curated at Geological Survey of Japan) |
| Watanabe, T. and Kato, A. (1961) Manganpyrosmalite from the Kyurazawa mine, Tochigi prefecture. Mineralogical Journal, 3, #3, 130-138. Introduction to Japanese Minerals (Geological Survey of Japan, 1970) |
| Kato, A., Shimizu, M., Okada, Y., Komuro, Y., Takeda, K. (1994): Vanadium-bearing Spessartine and Allantie in the Manganese-iron Ore from the Odaki Orebody of the Kyurazawa Mine, Ashio Town, Tochigi Prefecture, Japan. Bull. Nat. Sci. Mus., Tokyo, Ser. C.: 20(1), 1-12 |
Kyurasawa mine, Ashio, Nikko City, Tochigi Prefecture, Japan