Geographical sections. Alpine Regions, central area, Switzerland


Selection of images from the collection. © Fernando Metelli. All the photos and other material on this site are copyright, if you wish to use them please contact me for permission


The central Alpine Regions mean, in this page, the two Swiss cantons of Ticino (contiguous to  Italy) and Grisons (north-east of Ticino)

 

Canton of Grisons

 

Anatase
Some XX up to 0.6cm long, lustrous and metallic, dark bluish, on matrix cleaned from iron oxides. It is a typical Alpine piece. The one in evidence is posted on another smaller X
9.5x5.5cm
Thusis, Domleschg, Grisons (Grischun). Switzerland
Specimen n.701

Another photo: a bigger view

 

 

Apatite
Pink apatite,  0.7cm wide, in a complex shape. It is the usual Alpine association: smoked quartz up to 3cm and adularia up to 1cm (in this case adularia, normally white, is green for byssolite inclusion). It is a detail of a bigger piece, as it is possible to see in the other photo
10x10cm
Strem Valley, Sedrun, Tujetsch (Travetsch), Grisons (Grischun. Switzerland
Specimen n.446

Another photo: entire piece
Another photo: bigger view
Another photo: different point of view

 

Fluorite
Group of XX, edge up to 1.7 cm, blue-gray with a gray phantom. It comes from the Swiss Alpine pass that connect Elm in the Sernftal in Glarus with Pigniu (Panix) in the Vorderrhein Valley of Grisons
9x5.5cm
Panix Pass (Panixer Pass), Panix Valley, Grisons (Grischun). Switzerland
Specimen n.695

 

Hematite
Trasparent smoky quartz partly covered by hematite blades XX. The Travetsch Valley is one of the best Alpine mineralogical areas and Sedrun is the main village in the Valley
1.5x5cm
Nalps Valley, Tujetsch (Tavetsch), Grisons (Grischun). Switzerland
Specimen n.722

Another photo: a different point of view

 

Milarite
Couple of milarite XX, up to 1cm long, well terminated but damaged in the lower part, on adularia matrix
4x3cm
Val Giuv, Tujetsch (Tavetsch), Grisons. Switzerland
Specimen n.687

 

Ortoclase var adularia
Combination of XX, edge up to 9 cm
13x10cm
Val Giuv, Tujetsch (Tavetsch), Grisons. Switzerland
Specimen n.996

 

Quartz
Single fat X
13x7cm
Cima della Bianca, Cristalina valley, Grisons. Switzerland
Specimen n.1010

Canton of Ticino

 

Hematite
Bright iron rose of hematite (0.7 cm wide) on albite with a swarm of black anatase small XX (see the 4th photo)
10x6cm
Fibbia, San Gottardo massif, Leventina, Ticino (Tessin). Switzerland
Specimen n.1266

Another photo: entire piece
Another photo: bigger view
Another photo: detail on anatase

 

Ortoclase var adularia
Twinned XX of adularia - 3.5x3cm wide - on matrix covered by smaller XX od adularia. From the pass from Grisons canton to Ticino and Italy
10x6cm
Lucomagno pass (Lukmanier pass), Blenio Valley, Ticino (Tessin). Switzerland
Specimen n.996

 

Rutile
Elongated XX, up to 4cm long, within quartz XX. In the 2nd photo it is possible to see a bigger view of same XX, with othe small rutile XX. In the 3rd photo another detail of piece
6x7cm
Lucomagno pass (Lukmanier pass), Blenio Valley, Ticino (Tessin). Switzerland
Specimen n.568

Another photo: a different view
Another photo: another group of XX

 

Rutile
Prismatic X, well defined, 1.3 tall x 0.7cm, immersed in the quartzitic rock. It is a typical sample from this Alpine place, near the Italian border
6x7cm
Lodrino, Biasca, Ticino. Switzerland
Specimen n.788

 

Tremolite
Elongated XX, white-gray, immersed in the compact calcite partially dissolved with acid
8x5.5cm
Lodrino, Biasca, Ticino. Switzerland
Specimen n.1191


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