Arvigo, Calanca, Moesa Region, Grisons, Switzerland
Arvigo is a village and former municipality in the district of Moesa in the south of the Swiss canton of Graubünden, next to Ticino.
On 1 January 2015 the former municipalities of Arvigo, Braggio, Cauco and Selma merged to form the new municipality of Calanca.
Andalusite and kyanite are minerals typicaly found with biotite and quartz in lenticular globules (knauern) in the schists.