Actinolite from Akmola Region, Kazakhstan
Kazakhstan | |
| Bespaev H.A., Uzhkenov B.S., Aliaskarov S.A., Egembaev K.M. (Almaty, 1999) Gemstones of Kazakhstan, Reference book. Volume 1. Deposits and occurrences of precious and semiprecious stones. |
| Nitsenko, P., and Ussoltsev, I.I. (2004): Earth Science Frontiers 11(2), 333-338 |