Thorogummite from Amur Plate
Japan | |
| Dr Yohachiro Okamoto (1876-1960) collection (curated by the Geological Survey of Japan) |
| ex-Okamoto collection, now (2015) on display at Hakusekikan museum, Hirukawa. |
| Petrov, Alfredo (n.d.) Personal Communication. |
| Dr. Yohachiro Okamoto collection (curated at Geological Survey museum, Japan). |
| Yamada, S. (2004) Nihonsan-koubutsu Gojuon-hairetsu Sanchi-ichiranhyou (111 pp.) |
Russia | |
| Mironov A.G. and Gofman A.F, (1979) Barian betafite in pegmatites of Transbaikalien, - Minerals and Minerals Paragenesisa of Rocks and Ores, Leningrad, Nauka, p.127-132 (in Russian). |