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Geographical
sections. Alpine Regions, eastern area, Trentino Alto Adige, Bolzano prov (Alto Adige/Tirolo) |
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
Alto Adige is the region in the extreme
north of Italy
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Albite (pericline)
Well shaped white XX, up to 2.4cm tall. Pericline seems to be the
name for white opaque albite from the Alps, with elongated XX (instead
of the tabular ones of proper albite). Valle del Vento is located at the
top of Valle Aurina and it is famous for titanite and pericline
9x6cm
Valle del Vento, Valle Aurina, Bolzano. Italy
Specimen n.115
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Almandine
3 XX, in the classic dodecahedron on the gray-green schist. Edge max is 1.4cm
7.5x4.5cm
Monte dei Granati (Granatenkogel Mt), Moso in Passiria, Val Passiria (Passeier Tal) Bolzano. Italy
Specimen n.248
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Aragonite
XX of aragonite, up to 2cm long, in the vug of the rock
7.5x5.5cm
Predonico, Bolzano. Italy
Specimen n.886 |
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Calcite
Large XX (rhombs not well formed) with rounded edges, up to 4.5cm
wide. Calcite is partially covered by a coating of white powder. The XX
stands on the metamorphic rock; this shape is not unusual from that
Alpine place
13.5x10cm
Valle del Vento, Valle Aurina, Bolzano. Italy
Specimen n.878
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Dawsonite
Thin needles up to 2cm in a cavity. Dawsonite was found in a porfiritic quartz-rich occurrence, north of Terlano
10x8.5cm
Monticolo, Terlano, Bolzano. Italy
Specimen n.477
Another photo: bigger
view
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Dravite
2cm long X on matrix
6x5cm
Malga Lana, Valle Aurina, Bolzano. Italy
Specimen n.1205
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Gypsum
Yellow acicular XX, very brilliant, in rosette formations, up to 0.6
cm long. On the specimen some small botryoidal black masses of goethite
17x14cm
Lasa, Val Venosta. Italy
Specimen n.109
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Hematite
Fine rosettes of hematite, 1x1.3 cm wide
8x6.5cm
Alta valle di Rio Nero, Alpe Rio Nero, Valle Aurina. Italy
Specimen n.1245 |
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Titanite
Green transparent XX, in a complex formation (with a twinned X) with
adularia.
It is 1.5cm long
7x5cm
Valle Aurina, Bolzano. Italy
Specimen n.492
Another photo: a
bigger view
Another photo: a
different view
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Zoisite
6 cm long dark green X, fractured and clearly striated, in a quartzitic matrix.
It is a not frequent but typical occurrence in this region (Alpe del
Lago in Val Passiria, Passo di Vizze): the XX are never terminated
and always broken
10x9cm
Val Passiria, Bolzano. Italy
Specimen n.881
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