Datolite from Medel (Lucmagn), Surselva Region, Grisons, Switzerland
Switzerland | |
| Stalder, H. A., Wagner, A., Graeser, S. and Stuker, P. (1998): Mineralienlexikon der Schweiz. Wepf (Basel), p. 132-133. |
Stalder, H. A., Wagner, A., Graeser, S. and Stuker, P. (1998): Mineralienlexikon der Schweiz. Wepf (Basel), p. 132. | |
Piz Garviel, Val Medel, Medel, Surselva Region, Grisons, Switzerland