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Troncea Valley, Pragelato, Metropolitan City of Turin, Piedmont, Italyi
Regional Level Types
Troncea ValleyValley
PragelatoCommune
Metropolitan City of TurinMetropolitan City
PiedmontRegion
ItalyCountry

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PhotosMapsSearch
01176190017272285287932.jpg
General view of the valley

Troncea Valley, Pragelato, Metropolitan City of Turin, Piedmont, Italy
08041990017272285282036.jpg
View of the Beth mining area, ca. 1910.

Beth Mine, Troncea Valley, Pragelato, Metropolitan City of Turin, Piedmont, Italy
07024520017272285291359.jpg
Into the dark

Beth Mine, Troncea Valley, Pragelato, Metropolitan City of Turin, Piedmont, Italy
01176190017272285287932.jpg
General view of the valley

Troncea Valley, Pragelato, Metropolitan City of Turin, Piedmont, Italy
08041990017272285282036.jpg
View of the Beth mining area, ca. 1910.

Beth Mine, Troncea Valley, Pragelato, Metropolitan City of Turin, Piedmont, Italy
07024520017272285291359.jpg
Into the dark

Beth Mine, Troncea Valley, Pragelato, Metropolitan City of Turin, Piedmont, Italy
07074880017272285305127.jpg
General view of the valley

Troncea Valley, Pragelato, Metropolitan City of Turin, Piedmont, Italy
08041990017272285282036.jpg
View of the Beth mining area, ca. 1910.

Beth Mine, Troncea Valley, Pragelato, Metropolitan City of Turin, Piedmont, Italy
Type:
Valley
Mindat Locality ID:
189843
Long-form identifier:
mindat:1:2:189843:2
GUID (UUID V4):
0
Other Languages:
French:
Val Troncea (Val Tronchée), Pragela (Pragelas), Ville métropolitaine de Turin (Province de Turin), Piémont, Italie
Italian:
Val Troncea, Pragelato, Città metropolitana di Torino (Provincia di Torino), Piemonte, Italia
Occitan:
Val Tronche, Prajalats (Pradzalà), Ciutat metropolitana de Turin (Província de Turin), Piemont, Itàlia


Troncea Valley constitutes the head of the Chisone river basin and is entirely located in the municipal territory of Pragelato. Most of the valley is within the territory of Val Troncea Natural Park.

The main lithofacies of the valley consists of phyllitic calcschists with intercalations of micaceous marbles and graphitic schists. Meter to kilometer-sized blocks of mafic and/or ultra-mafic rocks of ophiolitic affinity (metagabbros, glaucophanites, greenschist-facies metabasites, and serpentinites) are scattered within these pelagic metasedimentary rocks. Large bodies of metagabbros crop out at Colle Clapis and on the south-western slope of Bric di Mezzogiorno (also known as Punta del Beth). Serpentinites are abundant only at Bric del Cucuc. A Permo-Werfenian sequence (consisting of muscovite mica schists, albite-chlorite gneisses, and whitish quarzites) overlaid by Jurassic limestones and Triassic dolostones with intercalations of bituminous and carbonaceous schists crops out on the left side of the valley at the base Punta Rognosa and Monte Banchetta.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List

Mineral list contains entries from the region specified including sub-localities

21 valid minerals.

Rock Types Recorded

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

Rock list contains entries from the region specified including sub-localities

Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

ⓘ Aegirine
Formula: NaFe3+Si2O6
ⓘ Albite
Formula: Na(AlSi3O8)
ⓘ Antigorite
Formula: Mg3(Si2O5)(OH)4
ⓘ Aragonite
Formula: CaCO3
ⓘ Calcite
Formula: CaCO3
ⓘ Chalcopyrite
Formula: CuFeS2
ⓘ 'Chlorite Group'
ⓘ 'Clinopyroxene Subgroup'
ⓘ Covellite
Formula: CuS
ⓘ Deerite
Formula: Fe2+6Fe3+3(Si6O17)O3(OH)5
ⓘ Epidote
Formula: (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
ⓘ Glaucophane
Formula: ◻[Na2][Mg3Al2]Si8O22(OH)2
ⓘ Harmotome
Formula: Ba2(Si12Al4)O32 · 12H2O
ⓘ Hematite
Formula: Fe2O3
ⓘ Magnesio-riebeckite
Formula: ◻{Na2}{Mg3Fe3+2}(Si8O22)(OH)2
ⓘ Olivenite
Formula: Cu2(AsO4)(OH)
ⓘ Parsettensite
Formula: (K,Na,Ca)7.5(Mn,Mg)49Si72O168(OH)50 · nH2O
ⓘ Piemontite
Formula: (CaCa)(AlAlMn3+)O[Si2O7][SiO4](OH)
ⓘ 'Plagioclase'
Formula: (Na,Ca)[(Si,Al)AlSi2]O8
ⓘ Pyrite
Formula: FeS2
ⓘ Quartz
Formula: SiO2
ⓘ Riebeckite
Formula: ◻[Na2][Fe2+3Fe3+2]Si8O22(OH)2
ⓘ Stilpnomelane
Formula: (K,Ca,Na)(Fe,Mg,Al)8(Si,Al)12(O,OH)36 · nH2O
ⓘ Tremolite
Formula: ◻Ca2Mg5(Si8O22)(OH)2

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
ⓘCovellite2.CA.05aCuS
ⓘChalcopyrite2.CB.10aCuFeS2
ⓘPyrite2.EB.05aFeS2
Group 4 - Oxides and Hydroxides
ⓘHematite4.CB.05Fe2O3
ⓘQuartz4.DA.05SiO2
Group 5 - Nitrates and Carbonates
ⓘCalcite5.AB.05CaCO3
ⓘAragonite5.AB.15CaCO3
Group 8 - Phosphates, Arsenates and Vanadates
ⓘOlivenite8.BB.30Cu2(AsO4)(OH)
Group 9 - Silicates
ⓘEpidote9.BG.05a(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
ⓘPiemontite9.BG.05a(CaCa)(AlAlMn3+)O[Si2O7][SiO4](OH)
ⓘAegirine9.DA.25NaFe3+Si2O6
ⓘTremolite9.DE.10◻Ca2Mg5(Si8O22)(OH)2
ⓘGlaucophane9.DE.25◻[Na2][Mg3Al2]Si8O22(OH)2
ⓘMagnesio-riebeckite9.DE.25◻{Na2}{Mg3Fe3+2}(Si8O22)(OH)2
ⓘRiebeckite9.DE.25◻[Na2][Fe2+3Fe3+2]Si8O22(OH)2
ⓘDeerite9.DH.60Fe2+6Fe3+3(Si6O17)O3(OH)5
ⓘAntigorite9.ED.15Mg3(Si2O5)(OH)4
ⓘParsettensite9.EG.40(K,Na,Ca)7.5(Mn,Mg)49Si72O168(OH)50 · nH2O
ⓘStilpnomelane9.EG.40(K,Ca,Na)(Fe,Mg,Al)8(Si,Al)12(O,OH)36 · nH2O
ⓘAlbite9.FA.35Na(AlSi3O8)
ⓘHarmotome9.GC.10Ba2(Si12Al4)O32 · 12H2O
Unclassified
ⓘ'Chlorite Group'-
ⓘ'Clinopyroxene Subgroup'-
ⓘ'Plagioclase'-(Na,Ca)[(Si,Al)AlSi2]O8

List of minerals for each chemical element

HHydrogen
Hⓘ AntigoriteMg3(Si2O5)(OH)4
Hⓘ DeeriteFe62+Fe33+(Si6O17)O3(OH)5
Hⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Hⓘ Glaucophane◻[Na2][Mg3Al2]Si8O22(OH)2
Hⓘ HarmotomeBa2(Si12Al4)O32 · 12H2O
Hⓘ Magnesio-riebeckite◻{Na2}{Mg3Fe23+}(Si8O22)(OH)2
Hⓘ OliveniteCu2(AsO4)(OH)
Hⓘ Parsettensite(K,Na,Ca)7.5(Mn,Mg)49Si72O168(OH)50 · nH2O
Hⓘ Piemontite(CaCa)(AlAlMn3+)O[Si2O7][SiO4](OH)
Hⓘ Riebeckite◻[Na2][Fe32+Fe23+]Si8O22(OH)2
Hⓘ Stilpnomelane(K,Ca,Na)(Fe,Mg,Al)8(Si,Al)12(O,OH)36 · nH2O
Hⓘ Tremolite◻Ca2Mg5(Si8O22)(OH)2
CCarbon
Cⓘ AragoniteCaCO3
Cⓘ CalciteCaCO3
OOxygen
Oⓘ AegirineNaFe3+Si2O6
Oⓘ AlbiteNa(AlSi3O8)
Oⓘ AntigoriteMg3(Si2O5)(OH)4
Oⓘ AragoniteCaCO3
Oⓘ CalciteCaCO3
Oⓘ DeeriteFe62+Fe33+(Si6O17)O3(OH)5
Oⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Oⓘ Glaucophane◻[Na2][Mg3Al2]Si8O22(OH)2
Oⓘ HarmotomeBa2(Si12Al4)O32 · 12H2O
Oⓘ HematiteFe2O3
Oⓘ Magnesio-riebeckite◻{Na2}{Mg3Fe23+}(Si8O22)(OH)2
Oⓘ OliveniteCu2(AsO4)(OH)
Oⓘ Parsettensite(K,Na,Ca)7.5(Mn,Mg)49Si72O168(OH)50 · nH2O
Oⓘ Piemontite(CaCa)(AlAlMn3+)O[Si2O7][SiO4](OH)
Oⓘ QuartzSiO2
Oⓘ Riebeckite◻[Na2][Fe32+Fe23+]Si8O22(OH)2
Oⓘ Stilpnomelane(K,Ca,Na)(Fe,Mg,Al)8(Si,Al)12(O,OH)36 · nH2O
Oⓘ Tremolite◻Ca2Mg5(Si8O22)(OH)2
Oⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
NaSodium
Naⓘ AegirineNaFe3+Si2O6
Naⓘ AlbiteNa(AlSi3O8)
Naⓘ Glaucophane◻[Na2][Mg3Al2]Si8O22(OH)2
Naⓘ Magnesio-riebeckite◻{Na2}{Mg3Fe23+}(Si8O22)(OH)2
Naⓘ Parsettensite(K,Na,Ca)7.5(Mn,Mg)49Si72O168(OH)50 · nH2O
Naⓘ Riebeckite◻[Na2][Fe32+Fe23+]Si8O22(OH)2
Naⓘ Stilpnomelane(K,Ca,Na)(Fe,Mg,Al)8(Si,Al)12(O,OH)36 · nH2O
Naⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
MgMagnesium
Mgⓘ AntigoriteMg3(Si2O5)(OH)4
Mgⓘ Glaucophane◻[Na2][Mg3Al2]Si8O22(OH)2
Mgⓘ Magnesio-riebeckite◻{Na2}{Mg3Fe23+}(Si8O22)(OH)2
Mgⓘ Parsettensite(K,Na,Ca)7.5(Mn,Mg)49Si72O168(OH)50 · nH2O
Mgⓘ Stilpnomelane(K,Ca,Na)(Fe,Mg,Al)8(Si,Al)12(O,OH)36 · nH2O
Mgⓘ Tremolite◻Ca2Mg5(Si8O22)(OH)2
AlAluminium
Alⓘ AlbiteNa(AlSi3O8)
Alⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Alⓘ Glaucophane◻[Na2][Mg3Al2]Si8O22(OH)2
Alⓘ HarmotomeBa2(Si12Al4)O32 · 12H2O
Alⓘ Piemontite(CaCa)(AlAlMn3+)O[Si2O7][SiO4](OH)
Alⓘ Stilpnomelane(K,Ca,Na)(Fe,Mg,Al)8(Si,Al)12(O,OH)36 · nH2O
Alⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
SiSilicon
Siⓘ AegirineNaFe3+Si2O6
Siⓘ AlbiteNa(AlSi3O8)
Siⓘ AntigoriteMg3(Si2O5)(OH)4
Siⓘ DeeriteFe62+Fe33+(Si6O17)O3(OH)5
Siⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Siⓘ Glaucophane◻[Na2][Mg3Al2]Si8O22(OH)2
Siⓘ HarmotomeBa2(Si12Al4)O32 · 12H2O
Siⓘ Magnesio-riebeckite◻{Na2}{Mg3Fe23+}(Si8O22)(OH)2
Siⓘ Parsettensite(K,Na,Ca)7.5(Mn,Mg)49Si72O168(OH)50 · nH2O
Siⓘ Piemontite(CaCa)(AlAlMn3+)O[Si2O7][SiO4](OH)
Siⓘ QuartzSiO2
Siⓘ Riebeckite◻[Na2][Fe32+Fe23+]Si8O22(OH)2
Siⓘ Stilpnomelane(K,Ca,Na)(Fe,Mg,Al)8(Si,Al)12(O,OH)36 · nH2O
Siⓘ Tremolite◻Ca2Mg5(Si8O22)(OH)2
Siⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
SSulfur
Sⓘ ChalcopyriteCuFeS2
Sⓘ CovelliteCuS
Sⓘ PyriteFeS2
KPotassium
Kⓘ Parsettensite(K,Na,Ca)7.5(Mn,Mg)49Si72O168(OH)50 · nH2O
Kⓘ Stilpnomelane(K,Ca,Na)(Fe,Mg,Al)8(Si,Al)12(O,OH)36 · nH2O
CaCalcium
Caⓘ AragoniteCaCO3
Caⓘ CalciteCaCO3
Caⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Caⓘ Parsettensite(K,Na,Ca)7.5(Mn,Mg)49Si72O168(OH)50 · nH2O
Caⓘ Piemontite(CaCa)(AlAlMn3+)O[Si2O7][SiO4](OH)
Caⓘ Stilpnomelane(K,Ca,Na)(Fe,Mg,Al)8(Si,Al)12(O,OH)36 · nH2O
Caⓘ Tremolite◻Ca2Mg5(Si8O22)(OH)2
Caⓘ Plagioclase(Na,Ca)[(Si,Al)AlSi2]O8
MnManganese
Mnⓘ Parsettensite(K,Na,Ca)7.5(Mn,Mg)49Si72O168(OH)50 · nH2O
Mnⓘ Piemontite(CaCa)(AlAlMn3+)O[Si2O7][SiO4](OH)
FeIron
Feⓘ AegirineNaFe3+Si2O6
Feⓘ ChalcopyriteCuFeS2
Feⓘ DeeriteFe62+Fe33+(Si6O17)O3(OH)5
Feⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Feⓘ HematiteFe2O3
Feⓘ Magnesio-riebeckite◻{Na2}{Mg3Fe23+}(Si8O22)(OH)2
Feⓘ PyriteFeS2
Feⓘ Riebeckite◻[Na2][Fe32+Fe23+]Si8O22(OH)2
Feⓘ Stilpnomelane(K,Ca,Na)(Fe,Mg,Al)8(Si,Al)12(O,OH)36 · nH2O
CuCopper
Cuⓘ ChalcopyriteCuFeS2
Cuⓘ CovelliteCuS
Cuⓘ OliveniteCu2(AsO4)(OH)
AsArsenic
Asⓘ OliveniteCu2(AsO4)(OH)
BaBarium
Baⓘ HarmotomeBa2(Si12Al4)O32 · 12H2O

Fossils

This region is too big or complex to display the fossil list, try looking at smaller subregions.

Localities in this Region

Italy

Other Regions, Features and Areas that Intersect

Eurasian PlateTectonic Plate
  • AlpsAccretionary Complex
Europe
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

Caron, J.-M. (1977) Lithostratigraphie et tectonique des schistes lustrés dans les Alpes cottiennes septentrionales et en Corse orientale. Thèse de doctorat, Université Louis Pasteur, Strasbourg, 315 pp.
Piccoli, G.C., Maletto, G., Bosio, P., Lombardo, B. (2007) Minerali del Piemonte e della Valle d'Aosta - Associazione Amici del Museo "F. Eusebio" Alba.
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.
Corno, A., Mosca, P., Borghi, A., and Gattiglio, M. (2019) Lithostratigraphy and petrography of the Monte Banchetta-Punta Rognosa oceanic succession (Troncea and Chisonetto valleys, Western Alps). Ofioliti, 44, 2, 83–95.
Corno, A., Mosca, P., Borghi, A., and Gattiglio, M. (2021) Geology of the Monte Banchetta – Punta Rognosa area (Troncea valley, Western Alps). Journal of Maps, 17, 2, 150-160.
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