Vote for your favorite mineral in #MinCup26! - Quartz vs. Asagiite
It's a classic vs a newbie as the most common named mineral in the crust Quartz is up against an exceedingly-rare sea foam-green mineral discovered just a few years ago Asagiite.
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Troncea, Troncea Valley, Pragelato, Metropolitan City of Turin, Piedmont, Italyi
Regional Level Types
TronceaHamlet (Abandoned)
Troncea ValleyValley
PragelatoCommune
Metropolitan City of TurinMetropolitan City
PiedmontRegion
ItalyCountry

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PhotosMapsSearch
07573680017272421295350.jpg
Hematite

Troncea, Troncea Valley, Pragelato, Metropolitan City of Turin, Piedmont, Italy
08280630017272421309496.jpg
Epidote

Troncea, Troncea Valley, Pragelato, Metropolitan City of Turin, Piedmont, Italy
07573680017272421295350.jpg
Hematite

Troncea, Troncea Valley, Pragelato, Metropolitan City of Turin, Piedmont, Italy
08280630017272421309496.jpg
Epidote

Troncea, Troncea Valley, Pragelato, Metropolitan City of Turin, Piedmont, Italy
07573680017272421295350.jpg
Hematite

Troncea, Troncea Valley, Pragelato, Metropolitan City of Turin, Piedmont, Italy
08280630017272421309496.jpg
Epidote

Troncea, Troncea Valley, Pragelato, Metropolitan City of Turin, Piedmont, Italy
Latitude & Longitude (WGS84):
44° 57' 12'' North , 6° 57' 9'' East
Latitude & Longitude (decimal):
44.95361,6.95266
GeoHash:
G#: spuzwpwc8
GRN:
N30E04
Type:
Hamlet (Abandoned) - last checked 2021
Köppen climate type:
Dfc : Subarctic climate
Nearest Settlements:
PlacePopulationDistance
Sestriere838 (2012)5.9km
Colle Sestriere646 (2014)6.0km
Pragelato-Ruà402 (2014)6.7km
Ghigo127 (2014)10.5km
Prali266 (2013)10.5km
Mindat Locality ID:
416834
Long-form identifier:
mindat:1:2:416834:1
GUID (UUID V4):
0
Other Languages:
French:
Tronchée, Val Troncea (Val Tronchée), Pragela (Pragelas), Ville métropolitaine de Turin (Province de Turin), Piémont, Italie
Italian:
Troncea, Val Troncea, Pragelato, Città metropolitana di Torino (Provincia di Torino), Piemonte, Italia
Occitan:
Tronche (la Trountséië), Val Tronche, Prajalats (Pradzalà), Ciutat metropolitana de Turin (Província de Turin), Piemont, Itàlia


Large landslide deposit, including large boulders of rocks of the Piemonte Zone (calcschists with meta-ophiolites), along the right hydrographic slope of Troncea Valley, between Roccia Curba and Rio dell'Arcano, near the abandoned hamlet of Troncea.

The boulders, essentially originated from the rocks forming the summital area of the ridge Colle dell'Arcano-Bric di Mezzogiorno, are made of calcschists and intercalated grey micaceous marbles, mica schists and quartz schists; metabasites (prasinites, amphibolites and epidote amphibolite, chlorite schists, etc.); metagabbro.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


5 valid minerals.

Rock Types Recorded

Note: data is currently VERY limited. Please bear with us while we work towards adding this information!

Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

ⓘ Albite
Formula: Na(AlSi3O8)
ⓘ 'Chlorite Group'
ⓘ 'Clinopyroxene Subgroup'
ⓘ Epidote
Formula: (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
ⓘ Glaucophane
Formula: ◻[Na2][Mg3Al2]Si8O22(OH)2
ⓘ Hematite
Formula: Fe2O3
ⓘ 'Plagioclase'
Formula: (Na,Ca)[(Si,Al)AlSi2]O8
ⓘ Quartz
Formula: SiO2

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
ⓘHematite4.CB.05Fe2O3
ⓘQuartz4.DA.05SiO2
Group 9 - Silicates
ⓘEpidote9.BG.05a(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
ⓘGlaucophane9.DE.25◻[Na2][Mg3Al2]Si8O22(OH)2
ⓘAlbite9.FA.35Na(AlSi3O8)
Unclassified
ⓘ'Chlorite Group'-
ⓘ'Clinopyroxene Subgroup'-
ⓘ'Plagioclase'-(Na,Ca)[(Si,Al)AlSi2]O8

List of minerals for each chemical element

HHydrogen
Hⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Hⓘ Glaucophane◻[Na2][Mg3Al2]Si8O22(OH)2
OOxygen
Oⓘ AlbiteNa(AlSi3O8)
Oⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Oⓘ Glaucophane◻[Na2][Mg3Al2]Si8O22(OH)2
Oⓘ HematiteFe2O3
Oⓘ QuartzSiO2
Oⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
NaSodium
Naⓘ AlbiteNa(AlSi3O8)
Naⓘ Glaucophane◻[Na2][Mg3Al2]Si8O22(OH)2
Naⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
MgMagnesium
Mgⓘ Glaucophane◻[Na2][Mg3Al2]Si8O22(OH)2
AlAluminium
Alⓘ AlbiteNa(AlSi3O8)
Alⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Alⓘ Glaucophane◻[Na2][Mg3Al2]Si8O22(OH)2
Alⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
SiSilicon
Siⓘ AlbiteNa(AlSi3O8)
Siⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Siⓘ Glaucophane◻[Na2][Mg3Al2]Si8O22(OH)2
Siⓘ QuartzSiO2
Siⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
CaCalcium
Caⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Caⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
FeIron
Feⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Feⓘ HematiteFe2O3

Other Regions, Features and Areas containing this locality

Eurasian PlateTectonic Plate
  • AlpsAccretionary Complex
EuropeContinent
Italy

This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.

References

Fioraso, G. (2009) Carta Geologica della Val Troncea. CNR- Istituto di Geoscienze e Georisorse, Ente di Gestione Parco Val Troncea, Regione Piemonte. Litografia Geda, Nichelino.
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