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Orthoclase from
Rio Graia, Trontano, Vigezzo Valley, Ossola Valley, Verbano-Cusio-Ossola Province, Piedmont, Italy

Classification
Species:Orthoclase
Formula:K(AlSi3O8)
Confirmation
Validity:Believed Valid
References
References: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.
Data
Mineral Data:Click here to view Orthoclase data
Locality Data:Click here to view Rio Graia, Trontano, Vigezzo Valley, Ossola Valley, Verbano-Cusio-Ossola Province, Piedmont, Italy
Nearest other occurrences of Orthoclase
10.3km (6.4 miles) I Mondei (Ca' Mondei), Montescheno, Antrona Valley, Ossola Valley, Verbano-Cusio-Ossola Province, Piedmont, Italy
21.3km (13.2 miles) Mont'Orfano (Montorfano), Mergozzo, Ossola Valley, Verbano-Cusio-Ossola Province, Piedmont, Italy
24.1km (15.0 miles) Cirla Quarry (Monte Camoscio Quarry; Camoscio Quarry), Feriolo, Baveno, Verbano-Cusio-Ossola Province, Piedmont, Italy
24.6km (15.3 miles) Seula mine (ex Montecatini quarry), Mount Camoscio, Oltrefiume, Baveno, Verbano-Cusio-Ossola Province, Piedmont, Italy
24.9km (15.5 miles) Locatelli Quarry, Mount Camoscio, Oltrefiume, Baveno, Verbano-Cusio-Ossola Province, Piedmont, Italy
28.6km (17.8 miles) Giacomini Quarry (Diverio Quarry; Bottigetto Quarry), Agrano, Omegna, Verbano-Cusio-Ossola Province, Piedmont, Italy
46.6km (29.0 miles) Puricelli Quarry, Cuasso al Monte, Ceresio Valley, Varese Province, Lombardy, Italy
47.0km (29.2 miles) Laghetto Quarry, Cavagnano, Cuasso al Monte, Ceresio Valley, Varese Province, Lombardy, Italy
47.1km (29.3 miles) Gebel Quarry (Mantegazza Quarry; Subalpina Quarry; Bianchi Quarry), Cuasso al Monte, Ceresio Valley, Varese Province, Lombardy, Italy
47.3km (29.4 miles) Del Prete Quarry, Cuasso al Piano, Cuasso al Monte, Ceresio Valley, Varese Province, Lombardy, Italy
 
Mineral and/or Locality  
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