Heulandite Subgroup from
Bulgaria | |
| Marcus Vau Collection |
| I. Kostov, V. Breskovska, J. Mincheva-Stefanova, G. Kirov (1964): Minerals of Bulgaria. Sofia, Bulgaria, 540 pp. (in Bulgarian). |
| Georgiev, Georgi (2008) A genetic model of the Elatsite porphyry copper deposit, Bulgaria. GEOCHEMISTRY, MINERALOGY AND PETROLOGY • SOFIA 46, 143-160. |
Babitsa, Breznik Municipality, Pernik Province, Bulgaria