Albitised pegmatites on north and south slopes of Pizzo Marcio Mt.
References:
- Boscardin, M.; Mattioli, G. & Pierini, C. (1982): Mikrolith und Columbite. LAPIS 7 (3), 17-19 [ with analysis of one pyrochlore group mineral from Pizzo Marcio]
- Callegari A., Mattioli V. (2002): Val Vigezzo: novità mineralogiche. Riv. Mineral. Ital., 26 (2): 78-80.
- Guastoni, A., Diella, V. & Pezzotta, F. (2008): Vigezzite and associated oxides of Nb–Ta from emerald-bearing pegmatites of the Vigezzo valley, Western Alps, Italy. Can. Mineral. 46, 619-633.