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Beth Mine (Beth-Ghinivert deposit), Troncea Valley, Pragelato, Metropolitan City of Turin, Piedmont, Italyi
Regional Level Types
Beth Mine (Beth-Ghinivert deposit)Mine
Troncea ValleyValley
PragelatoCommune
Metropolitan City of TurinMetropolitan City
PiedmontRegion
ItalyCountry

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PhotosMapsSearch
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
05727810017380915717175.jpg
The gunpowder depot

Beth Mine, 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
08538890017379705438169.jpg
The gunpowder depot

Beth Mine, 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
08833230017272285571516.jpg
Into the dark

Beth Mine, Troncea Valley, Pragelato, Metropolitan City of Turin, Piedmont, Italy
Latitude & Longitude (WGS84):
44° 57' 18'' North , 6° 58' 55'' East
Latitude & Longitude (decimal):
44.95510,6.98197
GeoHash:
G#: spuzwzu47
GRN:
N30E04
Type:
Mine
Köppen climate type:
Dfc : Subarctic climate
Nearest Settlements:
PlacePopulationDistance
Pragelato-Ruà402 (2014)7.2km
Sestriere838 (2012)8.2km
Colle Sestriere646 (2014)8.3km
Ghigo127 (2014)9.0km
Prali266 (2013)9.1km
Mindat Locality ID:
190469
Long-form identifier:
mindat:1:2:190469:0
GUID (UUID V4):
0
Name(s) in local language(s):
Miniera del Beth (Giacimento del Beth-Ghinivert), Val Troncea, Pragelato/Massello, Val Chisone, Provincia di Torino, Piemonte, Italia


Copper-iron deposit located in the area of Bric di Mezzogiorno-Colle del Beth-Bric Ghinivert and mined in the period 1860-1910. Some galleries [Vajalet decline or shaft, Bernard decline - see placeholder -, and Beth or Mezzodì gallery] are situated in Troncea Valley (Pragelato, Chisone Valley), others [Monte underground workings; Ghinivert underground workings with the adits named Santa Barbara, San Giacomo, Lantelme and Nicola] are located in Massello Valley (Massello, Germanasca Valley).
Collecting is forbidden in the Troncea Valley sector, because it is part of Val Troncea Natural Park.

The Cu-Fe deposit is characterised by a 0.25–2.5 m thick zone of pyrite-rich stratiform mineralisation associated with metabasites (metagabbros, glaucophanites, and greenschist-facies metabasites) and calcschists (Novarese, 1900; Bouquet & Forette, 1973; Giacometti & Rebay , 2013). Novarese (1900) asserted that the mineralised horizon has a lateral extension of at least 400 m (parallel to dip), a mean thickness of 0.5 m, and is continuous, parallel to the direction of strata, to a depth of at least 80 m. Disseminated sulfides occur in the metabasites at the contact with the stratiform mineralisation. At least two different generations of pyrite have been recorded at Beth; common relicts preserving colloidal textures, which are typical low-temperature hydrothermal features, are overgrown by cubic metamorphic pyrite (Natale, 1966, 1969; Natale & Visetti, 1980). A sedimentary-exhalative origin on the Piedmont Ocean floor has been proposed for the Beth-Ghinivert deposit (Natale & Visetti, 1980).

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


14 valid minerals.

Detailed Mineral List:

ⓘ Aegirine
Formula: NaFe3+Si2O6
ⓘ Albite
Formula: Na(AlSi3O8)
References:
Alessandro Cantamessa collectionIdentification: Visual Identification
ⓘ Aragonite
Formula: CaCO3
ⓘ Chalcopyrite
Formula: CuFeS2
ⓘ Covellite
Formula: CuS
ⓘ Deerite
Formula: Fe2+6Fe3+3(Si6O17)O3(OH)5
ⓘ Harmotome
Formula: Ba2(Si12Al4)O32 · 12H2O
ⓘ Hematite
Formula: Fe2O3
References:
Alessandro Cantamessa collectionIdentification: Visual Identification
ⓘ Magnesio-riebeckite
Formula: ◻{Na2}{Mg3Fe3+2}(Si8O22)(OH)2
ⓘ Olivenite
Formula: Cu2(AsO4)(OH)
ⓘ Piemontite
Formula: (CaCa)(AlAlMn3+)O[Si2O7][SiO4](OH)
ⓘ Pyrite
Formula: FeS2
References:
8 ,113–115
and 9,131–133
Novarese V. (1900): La miniera del Beth e Ghinivert. Rassegna mineraria della industria chimica e delle industrie mineralurgiche e metallurgiche, 12, 7, 97–99
Lotti B. (1928): I depositi dei minerali metalliferi. Guida allo studio e alla ricerca dei giacimenti metalliferi con speciali esemplificazioni di giacimenti italiani. Seconda Edizione. Edizioni de “L’Industria Mineraria”, Stab. Tipografico A. Porcile, Genova, 236 pp.
Huttenlocher H.F. (1934): Die Erzlagerstättenzonen der Westalpen. Schweiz. Mineral. Petr. Mitt., 14, 22-149, and Beitr. Geol. Schweiz, Geotechn. Serie, Kl. Mitt., 4, 149 pp.
Natale P. (1966): Sulla pirite di alcuni giacimenti piritoso-cupriferi stratiformi delle Alpi Occidentali. Boll. Ass. Min. Supalpina, 3, 3–4, 356–363
Natale, P. (1969): Re-crystallization and remobilization in some stratiform pyrite deposits of the Western Alps. In: Valera R. (ed.), Convegno sulla rimobilizzazione dei minerali metallici e non metallici, Cagliari, August 1969. Assoc. Minerar. Sarda - Ist. Giacim. Minerar. Univ. di Cagliari, 129-148
Natale, P. Visetti A. (1980): Contributo alla conoscenza minerogenica delle piriti di origine esalativo-sedimentaria, Boll. Ass. Min. Supalpina, 17, 1, 180–210.
ⓘ 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

Gallery:

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
Group 5 - Nitrates and Carbonates
ⓘAragonite5.AB.15CaCO3
Group 8 - Phosphates, Arsenates and Vanadates
ⓘOlivenite8.BB.30Cu2(AsO4)(OH)
Group 9 - Silicates
ⓘPiemontite9.BG.05a(CaCa)(AlAlMn3+)O[Si2O7][SiO4](OH)
ⓘAegirine9.DA.25NaFe3+Si2O6
ⓘ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
ⓘ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

List of minerals for each chemical element

HHydrogen
Hⓘ DeeriteFe62+Fe33+(Si6O17)O3(OH)5
Hⓘ HarmotomeBa2(Si12Al4)O32 · 12H2O
Hⓘ Magnesio-riebeckite◻{Na2}{Mg3Fe23+}(Si8O22)(OH)2
Hⓘ OliveniteCu2(AsO4)(OH)
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
CCarbon
Cⓘ AragoniteCaCO3
OOxygen
Oⓘ AegirineNaFe3+Si2O6
Oⓘ AlbiteNa(AlSi3O8)
Oⓘ AragoniteCaCO3
Oⓘ DeeriteFe62+Fe33+(Si6O17)O3(OH)5
Oⓘ HarmotomeBa2(Si12Al4)O32 · 12H2O
Oⓘ HematiteFe2O3
Oⓘ Magnesio-riebeckite◻{Na2}{Mg3Fe23+}(Si8O22)(OH)2
Oⓘ OliveniteCu2(AsO4)(OH)
Oⓘ Piemontite(CaCa)(AlAlMn3+)O[Si2O7][SiO4](OH)
Oⓘ Riebeckite◻[Na2][Fe32+Fe23+]Si8O22(OH)2
Oⓘ Stilpnomelane(K,Ca,Na)(Fe,Mg,Al)8(Si,Al)12(O,OH)36 · nH2O
NaSodium
Naⓘ AegirineNaFe3+Si2O6
Naⓘ AlbiteNa(AlSi3O8)
Naⓘ Magnesio-riebeckite◻{Na2}{Mg3Fe23+}(Si8O22)(OH)2
Naⓘ Riebeckite◻[Na2][Fe32+Fe23+]Si8O22(OH)2
Naⓘ Stilpnomelane(K,Ca,Na)(Fe,Mg,Al)8(Si,Al)12(O,OH)36 · nH2O
MgMagnesium
Mgⓘ Magnesio-riebeckite◻{Na2}{Mg3Fe23+}(Si8O22)(OH)2
Mgⓘ Stilpnomelane(K,Ca,Na)(Fe,Mg,Al)8(Si,Al)12(O,OH)36 · nH2O
AlAluminium
Alⓘ AlbiteNa(AlSi3O8)
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
SiSilicon
Siⓘ AegirineNaFe3+Si2O6
Siⓘ AlbiteNa(AlSi3O8)
Siⓘ DeeriteFe62+Fe33+(Si6O17)O3(OH)5
Siⓘ HarmotomeBa2(Si12Al4)O32 · 12H2O
Siⓘ Magnesio-riebeckite◻{Na2}{Mg3Fe23+}(Si8O22)(OH)2
Siⓘ Piemontite(CaCa)(AlAlMn3+)O[Si2O7][SiO4](OH)
Siⓘ Riebeckite◻[Na2][Fe32+Fe23+]Si8O22(OH)2
Siⓘ Stilpnomelane(K,Ca,Na)(Fe,Mg,Al)8(Si,Al)12(O,OH)36 · nH2O
SSulfur
Sⓘ ChalcopyriteCuFeS2
Sⓘ CovelliteCuS
Sⓘ PyriteFeS2
KPotassium
Kⓘ Stilpnomelane(K,Ca,Na)(Fe,Mg,Al)8(Si,Al)12(O,OH)36 · nH2O
CaCalcium
Caⓘ AragoniteCaCO3
Caⓘ Piemontite(CaCa)(AlAlMn3+)O[Si2O7][SiO4](OH)
Caⓘ Stilpnomelane(K,Ca,Na)(Fe,Mg,Al)8(Si,Al)12(O,OH)36 · nH2O
MnManganese
Mnⓘ Piemontite(CaCa)(AlAlMn3+)O[Si2O7][SiO4](OH)
FeIron
Feⓘ AegirineNaFe3+Si2O6
Feⓘ ChalcopyriteCuFeS2
Feⓘ DeeriteFe62+Fe33+(Si6O17)O3(OH)5
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

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

Jervis, Guglielmo (1873) I tesori sotterranei dell'Italia descrizione topografica e geologica di tutte le localita nel Regno d'Italia [The underground treasures of Italy topographical and geological description of all the locations in the Kingdom of Italy] Vol. 1 - Regione Della Alpi.
Novarese, V. (1900) La miniera del Beth e Ghinivert. Rassegna mineraria della industria chimica e delle industrie mineralurgiche e metallurgiche, 12, 7, 97–99; 8 ,113–115; and 9,131–133.
Lotti, B. (1928) I depositi dei minerali metalliferi. Guida allo studio e alla ricerca dei giacimenti metalliferi con speciali esemplificazioni di giacimenti italiani. Seconda Edizione. Edizioni de "L’Industria Mineraria", Stabilimento Tipografico A. Porcile, Genova, 236 pp.
Huttenlocher, H.F. (1934) Die Erzlagerstättenzonen der Westalpen. Schweizerische Mineralogische und Petrographische Mitteilungen, 14, 22-149; Beiträge zur Geologie der Schweiz, Geotechnische Serie, Kleinere Mitteilungen, 4, 149 pp.
Natale, P. (1966) Sulla pirite di alcuni giacimenti piritoso-cupriferi stratiformi delle Alpi Occidentali. Bollettino dell'Associazione Mineraria Supalpina, 3, 3–4, 356–363.
Natale, P. (1969) Re-crystallization and remobilization in some stratiform pyrite deposits of the Western Alps. In: Valera, R., (ed.), Convegno sulla rimobilizzazione dei minerali metallici e non metallici, Cagliari, August 1969. Associazione Mineraria Sarda - Istituto Giacimenti Minerari dell'Università di Cagliari, 129-148.
Bouquet, J., and Forette, M.C. (1973) Sur la deerite de l’ensemble des calchschistes piémontais à Troncea (Italie). Société Française de Minéralogie et de Cristallographie, 96, 314–316.
Natale, P., and Visetti, A. (1980) Contributo alla conoscenza minerogenica delle piriti di origine esalativo-sedimentaria, Bollettino dell'Associazione Mineraria Supalpina, 17, 1, 180–210.
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.
Giacometti, F., and Rebay, G. (2013) Structural and petrological evolution of the Beth-Ghinivert zone (Schistes Lustrés - Italian Western Alps). Rendiconti Online della Società Geologica Italiana, 29, 70–73.
Giacometti, F., Evans, K.A., Rebay, G., Cliff, J., Tomkins, A.G., Rossetti, P., Vaggelli, G., and Adams D.T. (2014) Sulfur isotope evolution in sulfide ores from Western Alps: Assessing the influence of subduction-related metamorphism. Geochemistry, Geophysics, Geosystems, 15, 3808–3829, doi:10.1002/2014GC005459.
Jannin, P., and Magrì, F. (2015) Antiche miniere delle Alpi Cozie. Guida storico-escursionistica. Volume 1. Alzani Editore, Pinerolo (TO), 263 pp.
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