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Switzerland | |
| Stalder, H. A., Wagner, A., Graeser, S. and Stuker, P. (1998): "Mineralienlexikon der Schweiz", Verlag Wepf & Co. (Basel), p. 64 |
| Meyre, Christian, De Capitani, Christian, Zack, Thomas, and Frey, Martin (1999) Petrology of high-pressure metapelites from the Adula Nappe (Central Alps, Switzerland). Journal of Petrology, 40, 1, 199-213. |
| Stalder, H. A., Wagner, A., Graeser, S. and Stuker, P. (1998): "Mineralienlexikon der Schweiz", Verlag Wepf & Co. (Basel), p. 63-64 |
| Stalder, H. A., Wagner, A., Graeser, S. and Stuker, P. (1998): "Mineralienlexikon der Schweiz", Verlag Wepf & Co. (Basel), p. 63-64. |