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Tavagnasco Mines (Tavagnasco Mine; Liva and Tavagnasco Mines; Tavagnasco mining district), Tavagnasco, Canavese District, Torino Province, Piedmont, Italy

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Location is approximate, estimate based on other nearby localities.
 
Latitude & Longitude (WGS84): 45° North , 7° East (est.)
Margin of Error:~1km
Other regions containing this locality:The Alps, Europe
Köppen climate type:Dfc : Subarctic climate
Name(s) in local language(s):Miniere di Tavagnasco (Miniera di Tavagnasco; Miniere di Liva e Tavagnasco; Distretto minerario di Tavagnasco), Tavagnasco, Canavese, Provincia di Torino, Piemonte, Italia


Lodes of mixed sulfides (Pb, Bi, Zn, As, Fe, Cu) in quartz-siderite gangue, embedded in micaschists of the Sesia-Lanzo Zone, on the northeastern flank of Monte Gregorio at elevations above 600 m a.s.l.

According to Froment (1899a, b), 16 lodes are present in the area of the former mining concession, extending from the left side of Rio Piovana (Briasse) to the right side of Rio Bosco across the valley of Liva brook: St. Jean, Briasse, St. Joseph, Genoveffa, Aquila, Ste. Catherine, Parella, Rosa, Ste. Anne, Belvédère, Espérance, Pauline, Piaunetto, Liva, Pary, and Feipian. St. Jean is the lowest of these lodes, Briasse the southernmost, and Feipian the highest. The ore bodies are related to a system of fractures having NE-SW to E-W strike, dipping NE to N with dip angles up to 60°; a second vein system oriented NW-SE, dipping towards NE with dip angles up to 40°, intersects the first one, giving rise to a stockwork deposit (Matteucci & Zucchetti, 1962; Mastrangelo et al., 1983).

The primary ore mineral assemblage consists of sulfides (sphalerite, galena, arsenopyrite, pyrite, pyrrhotite, chalcopyrite, and bismuthinite), accessory sulfosalts (bournonite and tennantite), and native gold. Gangue minerals are represented by quartz and siderite (Mastrangelo et al., 1983). Minor amounts of Pb-Bi acicular sulfosalts have been recently identified. The sulfide assemblage is locally altered and Cu-Pb-Bi secondary minerals occur (such as anglesite, azurite, langite, several Bi compounds, etc.).

According to fragmentary historical information a mining concession for lead was granted in the 1730s to the Marquis San Martino de Parella and an unsuccessful attempt to mine an ore vein for silver at Vallereis took place in 1847, after the more than a century-long dispute over land and mining rights between the local community and Count Giacomo Filippo Setto (died in 1747) and his successors.
According to the documents preserved at the State archives of Turin, prospecting permits were granted from the second half of the 1800s at the following localities: Fey Piani for Fe, Pb, Cu, Au, and Ag (1872); Chiosi or Foini for pyrite, Cu, and Ag (1874); Pino or Chiapei for Ag and Pb (1876); Vallereis for Au, Ag, Pb, and Cu (1886); Feipian for pyrite and chalcopyrite (1893); Getti and Vallereis for arsenopyrite and galena (1896); Barzino and Li Piani for Fe and Cu (1900).
A mining concession named Getti and Valleris was granted in 1897 to Stefano Serra, who sold it a few months later to Alcide Froment, founder of the company “Société générale des Mines de Liva et de Tavagnasco”. The real exploitation begun only in 1900 at Aquila lode, but in 1904 the concession was revoked (Rocchetti, 2009). Some small-scale works were done on the Tavagnasco lodes before the 1950s.

Mineral List

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

35 valid minerals. 2 (TL) - type locality of valid minerals.

Localities in this Region

Italy

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References

- Jervis G. (1873): I tesori sotterranei dell'Italia. Vol. 1: Regioni delle Alpi. Ed. Loescher, Torino, 410 pp.
- Jervis G. (1881): I tesori sotterranei dell'Italia. Vol. 3: Regioni delle Isole. Sardegna e Sicilia. Addenda ai precedenti volumi. Loescher, Torino, XXII+539 pp.
- Froment A. (1899a): Rapport sur les Mines de Tavagnasco. Tipografia L. Garda, Ivrea, 55 pp.
- Froment A. (1899b): Supplement à l’étude des Mines de Tavagnasco. Tipografia L. Garda, Ivrea, 17 pp.
- Matteucci E., Zucchetti S. (1962): Notizie preliminari sui depositi filoniani della zona a solfurati misti della zona di Tavagnasco (Ivrea) (Comunicazione preliminare). Rendiconti della Società Mineralogica Italiana, 18, 103-106.
- Bottino G., Mastrangelo F., Natale P., Zucchetti S. (1975): Alpi Occidentali (Piemonte e Valle d’Aosta). In: Memoria illustrativa della carta mineraria d'Italia alla scala 1:1.000.000. Memorie per servire alla descrizione della carta geologica d'Italia, 14, 1-37.
- Mastrangelo F., Natale P., Zucchetti S. (1983): Quadro giacimentologico e metallogenico delle Alpi Occidentali italiane. Bollettino Associazione Mineraria Subalpina, 20, 203-248.
- Piccoli G.C., Maletto G., Bosio P., Lombardo B. (2007): Minerali del Piemonte e della Valle d'Aosta. Associazione Amici del Museo "F. Eusebio" di Alba, Ed., Alba, 607 pp.
- Rocchetti A. (2009): La corsa all'oro in Italia - 1848-1915. Ecomuseo Valle Elvo e Serra & Associazione Biellese Cercatori d’Oro, Ed., Biella, 124 pp.
- Bonisoli T., Pramaggiore G. (2014): La calcopirite di Tavagnasco. Il ritrovamento di un appassionato ricercatore. Riv. Mineral. Ital., 38, (2), 124-126.
- Dalla Fontana E., Rossetti P., Cámara F., Biagioni C., Bittarello E., Ciriotti M.E., Taronna M., Martini B., Salvetti A., Ambrino P., Dalla Fontana G., Brizio P., La Manna N., Alciati C. (2014): Tavagnasco: excursus sulle emergenze minerarie del territorio. GMT 2014 Giornate Mineralogiche di Tavagnasco, 6-8 giugno 2014. Plinius, 40, 172.
- Bindi L., Martini B., Salvetti A., Dalla Fontana G., Taronna M., Biagioni C., Ciriotti M.E. (2015): Tavagnascoite, IMA 2014-099. CNMNC Newsletter No. 24, April 2015, page 250; Mineralogical Magazine, 79, 247-251.
- Bindi L., Biagioni C., Martini B., Salvetti A., Dalla Fontana G., Taronna M., Ciriotti M.E. (2016): Tavagnascoite, Bi4O4(SO4)(OH)2, a new oxy-hydroxy bismuth sulfate related to klebelsbergite. Mineralogical Magazine, Prepublication, Mineralogical Magazine, Prepublication, 24 pp. (available on line since November 27, 2015).
- Bindi L., Biagioni C., Martini B., Salvetti A. (2016): Ciriottiite, Cu(Cu,Ag)3Pb19(Sb,As)22(As2)S56, the Cu-analogue of sterryite from the Tavagnasco mining district, Piedmont, Italy. Minerals, 6(1), 8, 13 pp.; doi:10.3390/min6010008

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