K Feldspar from selected localities.
Bulgaria | |
| Kouzmanov, K., Moritz, R., von Quadt, A., Chiaradia, M., Peytcheva, I., Fontignie, D., Ramboz, C., and Bogdanov, K. (2009): Mineralium Deposita 44, 611-646. |
| Moritz, R., Kouzmanov, K., & Petrunov, R. (2004). Late Cretaceous Cu–Au epithermal deposits of the Panagyurishte district, Srednogorie zone, Bulgaria. Swiss Bulletin of Mineralogy and Petrology, 84(1), 79-99. |
| [var: Adularia] Singer, D.A., Berger, V.I., and Moring, B.C. (2008): US Geological Survey Open-File Report 2008-1155. |