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I Mondei (Ca' Mondei), Montescheno, Antrona Valley, Ossola Valley, Verbano-Cusio-Ossola Province, Piedmont, Italy
I Mondei (Ca' Mondei), Montescheno, Valle Antrona, Val d'Ossola, Verbano-Cusio-Ossola, Piemonte, Italia
On the SW side of Moncucco, in Antrona Valley (Ossola), there is the Montescheno pegmatite. In the I Mondei locality, there was a quarry, now abandoned, which extracted quartz and feldspar from a pegmatite that in this area cut an amphibolitic peridotite within a gneiss formation.
"Despite not explicitly quoted in the published literature, the "I Mondei pegmatite" should be better classified as a "meta-pegmatite", based on field observations of the present day rock textures. The two families of radiometric ages found in the literature will be also better explained considering cooling ages and post-metamorphic peak ages as well." (PGB 2009)
Approximate location (after satellite image) is not far from:
46° 4'55.27"N; 8°13'35.04"E
Mineral List
38 entries listed. 35 valid minerals.
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References
- Grill E., Pagliani G. (1939) Itinerari mineralogici and Roggiani A. G. (1940) - La pegmatite dell'Alpe I Mondei, Domodossola Natura, Vol. XXX, fasc. 3, Milano
- Cantadore F., Gramaccioli C.M. (1969) - Osservazioni sulla diffusione di alcuni minerali di terre rare nelle pegmatiti piemontesi e lombarde - Natura, vol. LX, fasc. 2, pp. 96-102, Milano
- Ravagnani, Daniele (1974), I giacimenti uraniferi italiani - Gruppo Min. Lombardo - Museo Civico di Storia Naturale di Milano.
- Biffi, P., Sbacchi, M., Sinelli E. (1999): La pegmatite de I Mondei. Rivista Mineralogica Italiana, 1/1999, 42-49.
- 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.
- Cantadore F., Gramaccioli C.M. (1969) - Osservazioni sulla diffusione di alcuni minerali di terre rare nelle pegmatiti piemontesi e lombarde - Natura, vol. LX, fasc. 2, pp. 96-102, Milano
- Ravagnani, Daniele (1974), I giacimenti uraniferi italiani - Gruppo Min. Lombardo - Museo Civico di Storia Naturale di Milano.
- Biffi, P., Sbacchi, M., Sinelli E. (1999): La pegmatite de I Mondei. Rivista Mineralogica Italiana, 1/1999, 42-49.
- 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.
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