Allanite Group from Bulgaria
Bulgaria | |
| I. Kostov, V. Breskovska, J. Mincheva-Stefanova, G. Kirov (1964): Minerals of Bulgaria. Sofia, Bulgaria, 540 pp. (in Bulgarian). |
| Marcus Vau Collection |
Kostov et al.(1964):Minerals of Bulgaria | |
Kievlenko, Eugenii Ya., Soregaroli, A. - Ed. (2003) Geology of Gems - First English Edition. Ocean Pictures Ltd, Littleton, Colorado. p.1-468. | |
| I. Kostov, V. Breskovska, J. Mincheva-Stefanova, G. Kirov (1964): Minerals of Bulgaria. Sofia, Bulgaria, 540 pp. (in Bulgarian). |
| (2002) Emeralds of the World. extraLapis English 2. Lapis International LLC |
Krichim Municipality, Plovdiv Province, Bulgaria