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Massueime Mines, Cótimos, Trancoso, Guarda, Portugali
Regional Level Types
Massueime MinesGroup of Mines
Cótimos- not defined -
Trancoso- not defined -
GuardaDistrict
PortugalCountry

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Name(s) in local language(s):Minas de Massueime, Cótimos (e Vila Garcia), Trancoso, Distrito da Guarda, Portugal
Latitude & Longitude (WGS84): 40° 48' 17'' North , 7° 12' 52'' West
Latitude & Longitude (decimal): 40.80473,-7.21470
GeoHash:G#: ez6b5u62v
Locality type:Group of Mines
Köppen climate type:Csb : Warm-summer Mediterranean climate


Inactive Sn-Li mines.

Registered mining concessions:
2402 Massueime no. 7 (Sn), registered on 13-08-1949
2403 Massueime no. 8 (Sn), registered on 13-08-1949
1591 Massueime no. 1 (Li-Sn), registered on 26-02-1927
1592 Massueime no. 2 (Li-Sn), registered on 26-02-1927
1593 Massueime no. 3 (Li-Sn), registered on 26-02-1927
[1635 Massueime no. 4 (Li-Sn), registered on 23-02-1928 (Vila Garcia parish)]

-

As minas de Massueime ficam localizadas junto ao rio Massueime nas proximidades da Serra de São Pedro, na freguesia de Cótimos, a cerca de 13 km da cidade de Pinhel.

O jazigo está confinado na zona de contacto entre o Complexo Xisto-Grauváquico ante-Ordivícico e os quartzitos que formam a Serra de São Pedro. Na zona de contacto, entre o Freixial e a ponte do Massueime existe um conjunto de filões quartzosos e pegmatíticos com direcção E-W e com pendores que variam entre os 80o/75o para Norte.

Em 1921 tiveram início os primeiros trabalhos mineiros subterrâneos (galerias e poços) e o aproveitamento dos depósitos aluvionares e eluvionares de cassiterite dos leitos do Massueime, Freixial e Rasa (Viana, 1927). Cerca de trinta anos mais tarde as minas encontravam-se esgotadas.

Os filões pegmatíticos de Massueime apresentam a notável particularidade de neles ter sido encontrada pela primeira vez ambligonite (fosfato de lítio) em Portugal.

A mineralização destes filões é constituída na sua maioria por cassiterite, estanite, pirite, calcopirite, scheelite e ambligonite (este mineral tende a concentra-se em bolsadas com peso superiore a 500 kg) - (Sousa, 1944).

A cassiterite encontra-se desseminada no quartzo e na ambligonite, contudo nestas minas aparecem cristais deste mineral com um habitus piramidal muito particular (piões de cassiterite).

In: METODOLOGIA DAS ACTIVIDADES PRÁTICAS DE CAMPO NO ENSINO DAS GEOCIÊNCIAS NA FORMAÇÃO INICIAL DE PROFESSORES: UMA EXPERIÊNCIA EM PINHEL, Jorge Bonito, C. Regêncio Macedo, J. M. Soares Pinto. Comunicação oral apresentada no VII Encontro Nacional de Educação em Ciências, realizado em Novembro de 1999 na Escola Superior de Educação da Universidade do Algarve, colocado sob a forma de artigo em A. C. Coelho, A. F. Almeida, J. M. Carmo e M. N. R. Sousa (Coords.), Educação em Ciências. Actas do VII Encontro Nacional. Faro: Escola Superior de Educação da Universidade do Algarve, pp. 144-178.

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


5 valid minerals.

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
'Chalcopyrite'2.CB.10aCuFeS2
'Stannite'2.CB.15aCu2FeSnS4
Group 4 - Oxides and Hydroxides
'Cassiterite'4.DB.05SnO2
'Quartz'4.DA.05SiO2
Group 8 - Phosphates, Arsenates and Vanadates
'Amblygonite'8.BB.05LiAl(PO4)F

List of minerals arranged by Dana 8th Edition classification

Group 2 - SULFIDES
AmBnXp, with (m+n):p = 1:1
Chalcopyrite2.9.1.1CuFeS2
Stannite2.9.2.1Cu2FeSnS4
Group 4 - SIMPLE OXIDES
AX2
Cassiterite4.4.1.5SnO2
Group 41 - ANHYDROUS PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
(AB)2(XO4)Zq
Amblygonite41.5.8.1LiAl(PO4)F
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2

List of minerals for each chemical element

LiLithium
Li AmblygoniteLiAl(PO4)F
OOxygen
O AmblygoniteLiAl(PO4)F
O CassiteriteSnO2
O QuartzSiO2
FFluorine
F AmblygoniteLiAl(PO4)F
AlAluminium
Al AmblygoniteLiAl(PO4)F
SiSilicon
Si QuartzSiO2
PPhosphorus
P AmblygoniteLiAl(PO4)F
SSulfur
S ChalcopyriteCuFeS2
S StanniteCu2FeSnS4
FeIron
Fe ChalcopyriteCuFeS2
Fe StanniteCu2FeSnS4
CuCopper
Cu ChalcopyriteCuFeS2
Cu StanniteCu2FeSnS4
SnTin
Sn CassiteriteSnO2
Sn StanniteCu2FeSnS4

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

Paleozoic
251.902 - 541 Ma



ID: 3161813
Palaeozoic granite

Age: Phanerozoic (251.902 - 541 Ma)

Lithology: Granite 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]

Ordovician
443.8 - 485.4 Ma



ID: 3185519
Paleozoic sedimentary rocks

Age: Ordovician (443.8 - 485.4 Ma)

Comments: Cantabrian Orogen

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

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Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Mendes de Sousa - Notas sobre a geologia e a mineralização das minas do Massueime; 1944.


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