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Switzerland | |
| Stalder, H. A., Wagner, A., Graeser, S. and Stuker, P. (1998): "Mineralienlexikon der Schweiz", Wepf (Basel), p. 264. |
| Stalder, H. A., Wagner, A., Graeser, S. and Stuker, P. (1998): "Mineralienlexikon der Schweiz", Wepf (Basel), p. 240. |
| Stalder, H. A., Wagner, A., Graeser, S. and Stuker, P. (1998): "Mineralienlexikon der Schweiz", Wepf (Basel), p. 408. |
| Pavel M. Kartashov analytical data 2019, Roberto Bracco material |
| Stalder, H. A., Wagner, A., Graeser, S. and Stuker, P. (1998): "Mineralienlexikon der Schweiz", Wepf (Basel), p. 337. |
| Lapis 29(9):33-34 (2004) |
| King, Van (n.d.) Personal communcation. |
| Stalder, H. A., Wagner, A., Graeser, S. and Stuker, P. (1998): "Mineralienlexikon der Schweiz", Wepf (Basel), p. 239-240. |
| Rock Currier |
| Lützenkirchen, V., and Loew, S. (2011) Late Alpine brittle faulting in the Rotondo granite (Switzerland): deformation mechanisms and fault evolution. Swiss Journal of Geosciences, 104, 31–54. |
| Weiß, S. (2014) Disthen von der Alpe Sponda. Lapis, 39 (9) 12-25 62. |
| Taddei, C. (1937) Dalle Lepontine al Ceneri. Note di geo-mineralogia. Istituto Editoriale Ticinese, Bellinzona, 182 pp. |
| Taddei, C. (1937) Dalle Lepontine al Ceneri. Note di geo-mineralogia. Istituto Editoriale Ticinese, Bellinzona, 182 pp. |
| Stalder, H. A., Wagner, A., Graeser, S. and Stuker, P. (1998): Mineralienlexikon der Schweiz. Wepf (Basel), p. 113. |
| [var. Pennine] Weiß, Stefan (1982) Iragna-Lodrino. Lapis, 7 (7-8) 32-38 |
| Christian Bracke Collection. |
| Stalder, H. A., Wagner, A., Graeser, S. and Stuker, P. (1998): Mineralienlexikon der Schweiz. Wepf (Basel), p. 113. |
Pizzo Terri, Blenio Valley, Blenio, Ticino, Switzerland