Pyrochlore Group from Kazakhstan
Kazakhstan | |
| Pekov, Igor V. (1998) Minerals first discovered on the territory of the former Soviet Union. Ocean Pictures, Moscow. 369pp. |
| Kogaro et al (1995) Alkaline Rocks and Carbonatites of the World Part 2: USSR |
| Oitseva, Tatyana & D’yachkov, Boris & Vladimirov, A. & Kuzmina, O. & Ageeva, O.. (2017). New data on the substantial composition of Kalba rare metal deposits. IOP Conference Series: Earth and Environmental Science. 110. 012018. 10.1088/1755-1315/110/1/012018. |
| geo.web.ru (2007) http://geo.web.ru/druza/l-Kent.htm |