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Japan | |
| Hirama, T, Yamada, T., Shiobara, Y., Nakamura, H., Kosuge, Y., Fujiwara, T. (2011): "Pb-containing apatite supergroup minerals from Numata City, Gunma Prefecture, Japan." Abstracts for Annual Meeting of Japan Association of Mineralogical Sciences 2011(0), 146-146. |
| Komuro Minerals (Tokyo) specimens |
| Shibuya & Lee (1984) Kouzan Chishitsu, 34, 69. |
| Dr. Yohachiro Okamoto collection (conserved by the Geological Survey of Japan) |
| Sakurai and Kato (1959) Koubutsugaku Zasshi, 4, 52-55. |