Heulandite Subgroup from Albigna Valley, Upper Val Bregaglia, Bregaglia, Maloja Region, Grisons, Switzerland
Switzerland | |
| Stalder, H. A., Wagner, A., Graeser, S. and Stuker, P. (1998): Mineralienlexikon der Schweiz. Wepf (Basel), p. 105. |
| Stalder, H. A., Wagner, A., Graeser, S. and Stuker, P. (1998): Mineralienlexikon der Schweiz. Wepf (Basel), p. 105. |