Grayite from Bohemian Massif, Europe
Germany | |
| Witzke, T. (2011): Neues von Sadisdorf, Erzgebirge: Gananit, Cheralith, Grayit und Brockit. Mineralien-Welt 22 (4), 47-50. |
Poland | |
| Mochnacka, Ksenia, Oberc-Dziedzic, Teresa, Mayer, Wojciech, Pieczka, Adam (2015) Ore mineralization related to geological evolution of the Karkonosze–Izera Massif (the Sudetes, Poland) — Towards a model. Ore Geology Reviews, 64. 215-238 doi:10.1016/j.oregeorev.2014.07.001 in: Dunn, P.J., Cabri, L.J., Clark, A.M., Fleischer, M. (1983): New mineral names. American Mineralogist: 68: 850 |