Latitude: 46°7'44"N
Longitude: 8°24'50"E
Alpe Rosso, Orcesco, Druogno, Val Vigezzo, Val d'Ossola, Verbano-Cusio-Ossola, Piemonte, Italia
Above Orcesco village, at an elevation of 1300 m asl, there is an albitite vein that was excavated from 1947 to 1953.
References:
- Boscardin, M.; Mattioli, G. & Pierini, C. (1982): Mikrolith und Columbite. LAPIS 7 (3), 17-19 [ with analysis of 1 columbite and 1 pyrochlore group mineral from Alpe Rosso]
- Mattioli, V. (1986): Malayait-Kristalle aus dem Val Vigezzo. LAPIS 11 (11), 5
- Mattioli, V., Appiani, R., Cini, V., Gentile, P., Preite, D., Vignola, P. (1995): Val Vigezzo - I minerali delle albititi. Ed. Linea due s.r.l., Marnate (Varese), 90 pp.
- Callegari A., Mattioli V. (2002). Val Vigezzo: novità mineralogiche. Riv. Miner. Ital., 2: 78-80.
- Piccoli, G.C., Maletto, G., Bosio, P., Lombardo, B. (2007). Minerali del Piemonte e della Valle d'Aosta. Associazione Amici del Museo "F. Eusebio" Alba, Ed., Alba (Cuneo) 607 pp.
- 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.
- Preite D., Cini V., Chinellato M. ( 2010 ). Die Mineralien aus den Albititen des Valle Vigezzo. Mineralien Welt 6/2010, 80-88.
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62 entries listed. 53 valid minerals. 2 type localities (valid minerals).
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