Calcite from Val Nalps, Tujetsch, Surselva Region, Grisons, Switzerland
Switzerland | |
| Stalder, H. A., Wagner, A., Graeser, S. and Stuker, P. (1998): "Mineralienlexikon der Schweiz", Wepf (Basel), p. 354-355. |
| Weibel, M. (1957): Contributions to Mineralogy and Petrology 5, 373-378. |
Val Nalps, Tujetsch, Surselva Region, Grisons, Switzerland