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Valle dell'Orco Mines (Orco Mines), Pozzani di Sopra, Santa Maria di Tretto (Contrada Pornaro), Tretto, Schio, Vicenza Province, Veneto, Italyi
Regional Level Types
Valle dell'Orco Mines (Orco Mines)Group of Mines
Pozzani di Sopra- not defined -
Santa Maria di Tretto (Contrada Pornaro)- not defined -
Tretto- not defined -
Schio- not defined -
Vicenza ProvinceProvince
VenetoRegion
ItalyCountry

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Name(s) in local language(s):Miniere della Valle dell'Orco (Miniere Orco), Pozzani di Sopra, Santa Maria di Tretto (Contrada Pornaro), Tretto, Schio, Provincia di Vicenza (Vicentino), Veneto, Italia
Latitude & Longitude (WGS84): 45° 44' 44'' North , 11° 21' 52'' East
Latitude & Longitude (decimal): 45.74583,11.36451
GeoHash:G#: u20h4xg2u
Locality type:Group of Mines
Köppen climate type:Cfb : Temperate oceanic climate
Nearest Settlements:
PlacePopulationDistance
Pornaro207 (2014)0.7km
Piane163 (2014)1.2km
Sant'Ulderico116 (2014)1.4km
Santorso5,236 (2014)2.2km
Schio33,740 (2014)3.7km


Ancient mines located on the right side of Rio Valle dell'Orco, NE of Santa Maria di Tretto (formerly Contrada Pornaro) and SE of Pozzani di Sopra.

The ore mineralisation is associated with baryte and silicified limestone in the Calcare di Monte Spitz formation.

One short adit (Orco 1) is located at an elevation of 393 m a.s.l. (coordinates 45°44'51.3" N, 11°21'51.90" E). According to Casolin (1991), the adit is ancient but the entrance would be enlarged in more recent times for the baryte extraction.
A second larger adit (Orco 2) is located at an elevation of 334 m a.s.l. (coordinates 45°44'44.59"N, 11°21'52" E). An external mineralised outcrop near the entrance consists of various sulfides and secondary minerals in a gangue composed of large baryte lamellae in association with idiomorphic quartz and carbonate. Ag content in tetrahedrite can attain 14.42 wt.% (Ferialdi & Perissinotto, 2003).

Regions containing this locality

Eurasian PlateTectonic Plate
EuropeContinent
The Alps, EuropeMountain Range

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


12 valid minerals.

Detailed Mineral List:

Anglesite
Formula: PbSO4
Baryte
Formula: BaSO4
Calcite
Formula: CaCO3
Cerussite
Formula: PbCO3
Chalcopyrite
Formula: CuFeS2
Covellite
Formula: CuS
Galena
Formula: PbS
'Limonite'
Formula: (Fe,O,OH,H2O)
Pyrite
Formula: FeS2
Quartz
Formula: SiO2
Smithsonite
Formula: ZnCO3
Sphalerite
Formula: ZnS
Tetrahedrite
Formula: Cu6[Cu4(Fe,Zn)2]Sb4S13

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
Chalcopyrite2.CB.10aCuFeS2
Covellite2.CA.05aCuS
Galena2.CD.10PbS
Pyrite2.EB.05aFeS2
Sphalerite2.CB.05aZnS
Tetrahedrite2.GB.05Cu6[Cu4(Fe,Zn)2]Sb4S13
Group 4 - Oxides and Hydroxides
Quartz4.DA.05SiO2
Group 5 - Nitrates and Carbonates
Calcite5.AB.05CaCO3
Cerussite5.AB.15PbCO3
Smithsonite5.AB.05ZnCO3
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
Anglesite7.AD.35PbSO4
Baryte7.AD.35BaSO4
Unclassified Minerals, Rocks, etc.
'Limonite'-(Fe,O,OH,H2O)

List of minerals arranged by Dana 8th Edition classification

Group 2 - SULFIDES
AmXp, with m:p = 1:1
Covellite2.8.12.1CuS
Galena2.8.1.1PbS
Sphalerite2.8.2.1ZnS
AmBnXp, with (m+n):p = 1:1
Chalcopyrite2.9.1.1CuFeS2
AmBnXp, with (m+n):p = 1:2
Pyrite2.12.1.1FeS2
Group 3 - SULFOSALTS
3 <ø < 4
Tetrahedrite3.3.6.1Cu6[Cu4(Fe,Zn)2]Sb4S13
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Calcite14.1.1.1CaCO3
Cerussite14.1.3.4PbCO3
Smithsonite14.1.1.6ZnCO3
Group 28 - ANHYDROUS ACID AND NORMAL SULFATES
AXO4
Anglesite28.3.1.3PbSO4
Baryte28.3.1.1BaSO4
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2
Unclassified Minerals, Mixtures, etc.
'Limonite'-(Fe,O,OH,H2O)

List of minerals for each chemical element

HHydrogen
H Limonite(Fe,O,OH,H2O)
CCarbon
C CalciteCaCO3
C CerussitePbCO3
C SmithsoniteZnCO3
OOxygen
O CalciteCaCO3
O BaryteBaSO4
O QuartzSiO2
O CerussitePbCO3
O AnglesitePbSO4
O SmithsoniteZnCO3
O Limonite(Fe,O,OH,H2O)
SiSilicon
Si QuartzSiO2
SSulfur
S GalenaPbS
S BaryteBaSO4
S SphaleriteZnS
S PyriteFeS2
S ChalcopyriteCuFeS2
S TetrahedriteCu6[Cu4(Fe,Zn)2]Sb4S13
S AnglesitePbSO4
S CovelliteCuS
CaCalcium
Ca CalciteCaCO3
FeIron
Fe PyriteFeS2
Fe ChalcopyriteCuFeS2
Fe TetrahedriteCu6[Cu4(Fe,Zn)2]Sb4S13
Fe Limonite(Fe,O,OH,H2O)
CuCopper
Cu ChalcopyriteCuFeS2
Cu TetrahedriteCu6[Cu4(Fe,Zn)2]Sb4S13
Cu CovelliteCuS
ZnZinc
Zn SphaleriteZnS
Zn TetrahedriteCu6[Cu4(Fe,Zn)2]Sb4S13
Zn SmithsoniteZnCO3
SbAntimony
Sb TetrahedriteCu6[Cu4(Fe,Zn)2]Sb4S13
BaBarium
Ba BaryteBaSO4
PbLead
Pb GalenaPbS
Pb CerussitePbCO3
Pb AnglesitePbSO4

Regional Geology

This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.

Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org

Pliocene
2.588 - 5.333 Ma



ID: 3152889
Pliocene clay

Age: Pliocene (2.588 - 5.333 Ma)

Lithology: Major:{clay}, Minor{sand,conglomerate,limestone}

Reference: Asch, K. The 1:5M International Geological Map of Europe and Adjacent Areas: Development and Implementation of a GIS-enabled Concept. Geologisches Jahrbuch, SA 3. [147]

Cretaceous
66 - 145 Ma



ID: 3185977
Mesozoic sedimentary rocks

Age: Cretaceous (66 - 145 Ma)

Comments: Dinaric Alps

Lithology: Sedimentary rocks

Reference: Chorlton, L.B. Generalized geology of the world: bedrock domains and major faults in GIS format: a small-scale world geology map with an extended geological attribute database. doi: 10.4095/223767. Geological Survey of Canada, Open File 5529. [154]

Data and map coding provided by Macrostrat.org, used under Creative Commons Attribution 4.0 License

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Billows, E. (1919): Lessico mineralogico per la regione veneta. Società Coop. Tipografica, Padova, 54 pp.
Boscardin, M., Girardi A., Violati Tescari, O. (1975): Minerali nel Vicentino. Club Alpino Italiano, Sezione di Vicenza, 144 pp.
Casolin, G. (2000): L'anfiteatro dolomitico: le miniere, le cave, le fonti. Tipografia Menin, Schio, 129 pp.
Ferialdi, L., Perissinotto, M.L. (2003): Le miniere di argento del Tretto (Vicenza). Opera Ipogea, 1, 3-62.
Boscardin, M., Daleffe, A., Rocchetti, I., Zordan, A. (2011): Minerali del Vicentino - Aggiornamenti, località e nuove determinazioni. Museo di Archeologia e Scienze Naturali “G. Zannato”, Montecchio Maggiore (Vicenza), 183 pp.


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