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Cordierite from
Pizzo Trubinasca, Bondasca Valley, Bregaglia Valley (Bergell), Grischun (Grisons; Graubünden), Switzerland

Classification
Species:Cordierite
Formula:(Mg,Fe)2Al3(AlSi5O18)
Confirmation
Validity:Believed Valid
References
References:Stalder, H. A., Wagner, A., Graeser, S. and Stuker, P. (1998): Mineralienlexikon der Schweiz. Wepf (Basel), p. 122.
Data
Mineral Data:Click here to view Cordierite data
Locality Data:Click here to view Pizzo Trubinasca, Bondasca Valley, Bregaglia Valley (Bergell), Grischun (Grisons; Graubünden), Switzerland
Nearest other occurrences of Cordierite
5.7km (3.5 miles) A Chete-Canete area, Villa di Chiavenna, Bregaglia Valley, Valchiavenna, Sondrio Province, Lombardy, Italy
27.2km (16.9 miles) B Dervio-Colico road tunnel, Dorio, Lecco Province, Lombardy, Italy
63.0km (39.1 miles) C Sponda Alp - Pizzo Forno, Chironico Valley, Leventina, Ticino (Tessin), Switzerland
74.5km (46.3 miles) D Schattenspitze, Ochsen valley, Silvretta Alps, Montafon, Vorarlberg, Austria
77.3km (48.0 miles) E Vedretta della Miniera, Zebrù Valley, Valfurva, Valtellina, Sondrio Province, Lombardy, Italy
94.1km (58.5 miles) F Seula mine (ex Montecatini quarry), Mount Camoscio, Oltrefiume, Baveno, Verbano-Cusio-Ossola Province, Piedmont, Italy
94.6km (58.8 miles) G Mont'Orfano (Montorfano), Mergozzo, Ossola Valley, Verbano-Cusio-Ossola Province, Piedmont, Italy
95.2km (59.1 miles) H Candoglia marble quarries, Candoglia, Mergozzo, Ossola Valley, Verbano-Cusio-Ossola Province, Piedmont, Italy
162.3km (100.9 miles) I Brosso Mine, Cálea, Léssolo, Canavese District, Torino Province, Piedmont, Italy
165.4km (102.8 miles) J Traversella Mine, Traversella, Chiusella Valley, Canavese District, Torino Province, Piedmont, Italy
180.7km (112.3 miles) K Porphyry quarry, Detzeln, Waldshut, Black Forest, Baden-Württemberg, Germany
213.3km (132.6 miles) L Zeigerhalde, Oberried, Black Forest, Baden-Württemberg, Germany
222.0km (137.9 miles) M Königsfeld im Schwarzwald, Freiburg im Breisgau, Black Forest, Baden-Württemberg, Germany
243.1km (151.1 miles) N Fohberg Quarry (Hauri Quarry), Bötzingen, Kaiserstuhl, Baden-Württemberg, Germany
Mineral and/or Locality  
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