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Ervedosa Mine (Tuela Mine), Ervedosa, Vinhais, Bragança, Portugali
Regional Level Types
Ervedosa Mine (Tuela Mine)Mine
Ervedosa- not defined -
Vinhais- not defined -
BragançaDistrict
PortugalCountry

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Name(s) in local language(s):Mina de Ervedosa (Mina do Tuela), Ervedosa, Vinhais, Distrito de Bragança, Portugal
Latitude & Longitude (WGS84): 41° 43' 9'' North , 7° 5' 24'' West
Latitude & Longitude (decimal): 41.71937,-7.09005
GeoHash:G#: ez6vqdv0v
Locality type:Mine
Köppen climate type:Csb : Warm-summer Mediterranean climate
Other/historical names associated with this locality:Minas do Tuela (junto ao Rio Tuela)


Sn-As mine (1906/1969)

- First period:
Everdosa Mine - mining concessions:
No. 631 Alto do Vale da Veiga (Sn), registerd on 05-11-1914 (*)
No. 493 Pereiro (Sn), registerd on 24-12-1909 (*)
No. 492 Borralheira (Sn), registerd on 23-12-1909 (*)

- Second period:
Everdosa Mining Field (CM31) registered on 05-05-1938

(*) Merged in the Everdosa Mining Field in 1938.

The first references to the tinny deposit of Ervedosa date back to 1857. After a long series of new registrations in 1908 the first mining concession (mina do Alto do Pereiro) was establised and allocated to the Belgian co. Société des Mines d'Etain d'Ervedosa.
The mine was exploited for tin and arsenic with some initial preparatory and prospecting underground works. It was also built a washing plant on the right bank of the river Tuela. However, in 1917, that company stoped the mining operations, which were then resumed in 1920, but now by the English co. Ervedosa Tin Mines. Under this administration was built a new washing plant on the left bank of the River Tuela as complement to the existing one, however, in 1927, the company stoped the exploration.
The mine was acquired by some of its former employees and the operations restarted in 1928. In 1938 the mining concessions were merged in with the Couto Mineiro de Ervedosa (Everdosa Mining Field), already a major producer of concentrates of cassiterite.
Between 1939 and 1965, the mine worked on continuous mining having been removed from the Ervedosa mine, also called mine Tuela, about 6,000 tons of tin and the same amount of arsenic oxide. According to existing registers, there was a depletion of mineralization since 1959. Between 1958 and 1969 the operation was made predominantly in the open pits and simultaneously in the alluvium of the Tuela River, where cassiterite levels could reach about 4 kg per tonne.
The mines closed definitively in 1969.
In 2007 the co. Mining Technology Investments has done some research and prospecting studies.
Portuguese version summarized and adapted to English by RN, "O Passado Mineiro e o Presente, na Região de Rebordelo, Ervedosa e Murçós", Elisa Preto, Paulo Favas e Nuno Figueiredo, 2008.

Regions containing this locality

Iberian Peninsula

Peninsula - 1,601 mineral species & varietal names listed

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


14 valid minerals.

Detailed Mineral List:

Arsenopyrite
Formula: FeAsS
Cassiterite
Formula: SnO2
'Chlorite Group'
'Columbite-Tantalite'
Ferberite
Formula: FeWO4
Fluorapatite
Formula: Ca5(PO4)3F
Ilmenite
Formula: Fe2+TiO3
Ixiolite
Formula: (Ta,Nb,Sn,Fe,Mn)4O8
Pyrite
Formula: FeS2
Pyrrhotite
Formula: Fe7S8
Scheelite
Formula: Ca(WO4)
Schorl
Formula: Na(Fe2+3)Al6(Si6O18)(BO3)3(OH)3(OH)
Scorodite
Formula: Fe3+AsO4 · 2H2O
Reference: António Cruz collection Visual identification
Sphalerite
Formula: ZnS
Stannite
Formula: Cu2FeSnS4
Torbernite
Formula: Cu(UO2)2(PO4)2 · 12H2O

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
'Arsenopyrite'2.EB.20FeAsS
'Pyrite'2.EB.05aFeS2
'Pyrrhotite'2.CC.10Fe7S8
'Sphalerite'2.CB.05aZnS
'Stannite'2.CB.15aCu2FeSnS4
Group 4 - Oxides and Hydroxides
'Cassiterite'4.DB.05SnO2
'Ferberite'4.DB.30FeWO4
'Ilmenite'4.CB.05Fe2+TiO3
'Ixiolite'4.DB.25(Ta,Nb,Sn,Fe,Mn)4O8
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
'Scheelite'7.GA.05Ca(WO4)
Group 8 - Phosphates, Arsenates and Vanadates
'Fluorapatite'8.BN.05Ca5(PO4)3F
'Scorodite'8.CD.10Fe3+AsO4 · 2H2O
'Torbernite'8.EB.05Cu(UO2)2(PO4)2 · 12H2O
Group 9 - Silicates
'Schorl'9.CK.05Na(Fe2+3)Al6(Si6O18)(BO3)3(OH)3(OH)
Unclassified Minerals, Rocks, etc.
'Chlorite Group'-
'Columbite-Tantalite'-

List of minerals arranged by Dana 8th Edition classification

Group 2 - SULFIDES
AmXp, with m:p = 1:1
Pyrrhotite2.8.10.1Fe7S8
Sphalerite2.8.2.1ZnS
AmBnXp, with (m+n):p = 1:1
Stannite2.9.2.1Cu2FeSnS4
AmBnXp, with (m+n):p = 1:2
Arsenopyrite2.12.4.1FeAsS
Pyrite2.12.1.1FeS2
Group 4 - SIMPLE OXIDES
A2X3
Ilmenite4.3.5.1Fe2+TiO3
AX2
Cassiterite4.4.1.5SnO2
Group 8 - MULTIPLE OXIDES CONTAINING NIOBIUM,TANTALUM OR TITANIUM
ABO4
Ixiolite8.1.10.1(Ta,Nb,Sn,Fe,Mn)4O8
Group 40 - HYDRATED NORMAL PHOSPHATES,ARSENATES AND VANADATES
AB2(XO4)2·xH2O, containing (UO2)2+
Torbernite40.2a.13.1Cu(UO2)2(PO4)2 · 12H2O
(AB)5(XO4)2·xH2O
Scorodite40.4.1.3Fe3+AsO4 · 2H2O
Group 41 - ANHYDROUS PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
A5(XO4)3Zq
Fluorapatite41.8.1.1Ca5(PO4)3F
Group 48 - ANHYDROUS MOLYBDATES AND TUNGSTATES
AXO4
Ferberite48.1.1.2FeWO4
Scheelite48.1.2.1Ca(WO4)
Group 61 - CYCLOSILICATES Six-Membered Rings
Six-Membered Rings with borate groups
Schorl61.3.1.10Na(Fe2+3)Al6(Si6O18)(BO3)3(OH)3(OH)
Unclassified Minerals, Rocks, etc.
'Chlorite Group'-
'Columbite-Tantalite'-

List of minerals for each chemical element

HHydrogen
H SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
H ScoroditeFe3+AsO4 · 2H2O
H TorberniteCu(UO2)2(PO4)2 · 12H2O
BBoron
B SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
OOxygen
O CassiteriteSnO2
O FerberiteFeWO4
O FluorapatiteCa5(PO4)3F
O IlmeniteFe2+TiO3
O Ixiolite(Ta,Nb,Sn,Fe,Mn)4O8
O ScheeliteCa(WO4)
O SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
O ScoroditeFe3+AsO4 · 2H2O
O TorberniteCu(UO2)2(PO4)2 · 12H2O
FFluorine
F FluorapatiteCa5(PO4)3F
NaSodium
Na SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
AlAluminium
Al SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
SiSilicon
Si SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
PPhosphorus
P FluorapatiteCa5(PO4)3F
P TorberniteCu(UO2)2(PO4)2 · 12H2O
SSulfur
S ArsenopyriteFeAsS
S PyriteFeS2
S PyrrhotiteFe7S8
S SphaleriteZnS
S StanniteCu2FeSnS4
CaCalcium
Ca FluorapatiteCa5(PO4)3F
Ca ScheeliteCa(WO4)
TiTitanium
Ti IlmeniteFe2+TiO3
MnManganese
Mn Ixiolite(Ta,Nb,Sn,Fe,Mn)4O8
FeIron
Fe ArsenopyriteFeAsS
Fe FerberiteFeWO4
Fe IlmeniteFe2+TiO3
Fe PyriteFeS2
Fe PyrrhotiteFe7S8
Fe SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
Fe ScoroditeFe3+AsO4 · 2H2O
Fe StanniteCu2FeSnS4
CuCopper
Cu StanniteCu2FeSnS4
Cu TorberniteCu(UO2)2(PO4)2 · 12H2O
ZnZinc
Zn SphaleriteZnS
AsArsenic
As ArsenopyriteFeAsS
As ScoroditeFe3+AsO4 · 2H2O
NbNiobium
Nb Ixiolite(Ta,Nb,Sn,Fe,Mn)4O8
SnTin
Sn CassiteriteSnO2
Sn StanniteCu2FeSnS4
TaTantalum
Ta Ixiolite(Ta,Nb,Sn,Fe,Mn)4O8
WTungsten
W FerberiteFeWO4
W ScheeliteCa(WO4)
UUranium
U TorberniteCu(UO2)2(PO4)2 · 12H2O

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

Devonian - Silurian
358.9 - 443.8 Ma



ID: 3184359
Paleozoic crystalline metamorphic rocks

Age: Paleozoic (358.9 - 443.8 Ma)

Comments: Morais-Braganca Allochthon

Lithology: Amphibolite; mafic gneiss

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]

Early Devonian - Silurian
393.3 - 443.8 Ma



ID: 3151499
Silurian phyllite

Age: Paleozoic (393.3 - 443.8 Ma)

Description: undifferentiated metamorphic

Lithology: Major:{phyllite}, Minor{quartzite,greenschist,meta-sediment group}

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]

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)
Celina Busto Fernandes, As Minas de Ervedosa (1906-1969) Efígie de Memória e Narrativa.Estudos e Documentos, Âncora Editora, Lisboa 2010.


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