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Tourmaline from
Rio Graia, Trontano, Verbano-Cusio-Ossola Province, Piedmont, Italy


Locality type:Pegmatite
Classification
Species:'Tourmaline' (not an IMA approved species)
Formula:AD3G6(T6O18)(BO3)3X3Z
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Tourmaline data
Locality Data:Click here to view Rio Graia, Trontano, Verbano-Cusio-Ossola Province, Piedmont, Italy
Data Identifiers
Mindat Occurrence Record ID:156310
Long-form Identifier:1:3:156310:8
GUID (UUID V4):0
Nearest other occurrences of Tourmaline
2.8km (1.8 miles) ⓘGrignaschi Quarry, Cosasca, Trontano, Verbano-Cusio-Ossola Province, Piedmont, Italy
3.6km (2.2 miles) ⓘPizzo Marcio North dyke, Pizzo Marcio, Trontano, Verbano-Cusio-Ossola Province, Piedmont, Italy
3.9km (2.4 miles) ⓘPizzo Marcio South-East dyke, Pizzo Marcio, Trontano, Verbano-Cusio-Ossola Province, Piedmont, Italy
5.1km (3.2 miles) ⓘAlpe Rosso, Orcesco, Druogno, Verbano-Cusio-Ossola Province, Piedmont, Italy
6.3km (3.9 miles) ⓘCrevoladossola Quarry, Crevoladossola, Verbano-Cusio-Ossola Province, Piedmont, Italy
11.0km (6.8 miles) ⓘColloro-(Premosello) pegmatite veins, Premosello-Chiovenda, Verbano-Cusio-Ossola Province, Piedmont, Italy
13.2km (8.2 miles) ⓘCuzzago-Proman pegmatite veins, Premosello-Chiovenda, Verbano-Cusio-Ossola Province, Piedmont, Italy
13.5km (8.4 miles) ⓘNibbio-Val Faera (Nibbio-Val Fredda) pegmatites, Nibbio, Mergozzo, Verbano-Cusio-Ossola Province, Piedmont, Italy
14.0km (8.7 miles) ⓘSan Pietro Quarry (San Pietro Oratory), Nibbio, Mergozzo, Verbano-Cusio-Ossola Province, Piedmont, Italy
16.2km (10.0 miles) ⓘCandoglia marble quarries, Candoglia, Mergozzo, Verbano-Cusio-Ossola Province, Piedmont, Italy
References
Vittorio Mattioli (1976) - Località mineralogiche consigliate: Rio Graja, Trontano, Valle Vigezzo - in Notiziario del Gruppo Min. Lombardo - Vol. 2, Jun. 1976 pp. 40-42
 
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