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Monte Suímo Mine, Belas, Sintra, Lisbon, Portugali
Regional Level Types
Monte Suímo MineMine
Belas- not defined -
Sintra- not defined -
LisbonDistrict
PortugalCountry

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Key
Latitude & Longitude (WGS84):
38° 48' 29'' North , 9° 17' 33'' West
Latitude & Longitude (decimal):
Locality type:
Nearest Settlements:
PlacePopulationDistance
Belas21,019 (2018)4.3km
Almargem8,271 (2012)4.4km
Algueirão66,250 (2018)4.6km
Cacém93,982 (2012)4.6km
Mem Martins9,000 (2018)4.6km
Name(s) in local language(s):
Mina de Monte Suímo, Belas, Sintra, Distrito de Lisboa, Portugal


Gemstone garnet mine.

Monte Suímo is a small hill about 290 meters high in the Carregueira area.
The mining area is known for its four ancient trenches in a basalt vein oriented N-NW S-SW with an estimated length between 700/800 m (the main trenche measures 120 m lenght, 54 m width, 27 m depth/height [Paul Choffat, Academia das Ciências de Lisboa, Actas das Assembleias Gerais, volume IV (1913/1915), Lisboa, Imprensa Nacional, 1918, pag. 152-156].
There are records that gem quality pyropes (semi-precious stones) were explored in this locality since, at least, the Roman times as described by Plinio-o-Velho.
The remains of these mining operations were taken by the vegetation and only in the surrounding paths of Monte Suímo you can find some pyrope small fragments.
The area is now closed to visitors.




Mindat Articles


Mount Suimo Gemstone Mine by Martins da Pedra http://www.mindat.org/article.php/1615

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


7 valid minerals.

Detailed Mineral List:

'Amphibole Supergroup'
Formula: AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Reference: Martins de Pedra
Augite
Formula: (CaxMgyFez)(Mgy1Fez1)Si2O6
Reference: IST Lisbon mineral collection
'Basaltic Hornblende'
Reference: Artur Neves
'Fayalite-Forsterite Series'
Reference: Martins da Pedra collection
Forsterite
Formula: Mg2SiO4
Reference: Museu Nacional de História Natural e da Ciência, Lisboa – former António Bello (Harvard) collection
'Garnet Group'
Formula: X3Z2(SiO4)3
Description: A black garnet occurs at the locality. Certainly not andradite. Chemical analysis needed.
Reference: Van King; Palácios, T. (1985) - Petrologia do Complexo vulcânico de Lisboa. Tese Doutoramento Univ. Lisboa, 260 p.
'Hornblende'
Reference: Martins da Pedra collection
Kaersutite
Formula: {Na}{Ca2}{Mg3AlTi}(Al2Si6O22)O2
Reference: Palácios, T. (1985) - Petrologia do Complexo vulcânico de Lisboa. Tese Doutoramento Univ. Lisboa, 260 p.
Magnetite
Formula: Fe2+Fe3+2O4
Reference: Museu Nacional de História Natural e da Ciência, Lisboa – former António Bello (Harvard) collection
'Olivine Group'
Formula: M2SiO4
Reference: Souza-Brandão, V. (1913) - Sobre um crystal de Zircão-Jacintho, de Bellas junto a Lisboa. Comun. Com. Serv.
Pyrope
Formula: Mg3Al2(SiO4)3
Reference: Analyzed - Rui Nunes 2009; Palácios, T. (1985) - Petrologia do Complexo vulcânico de Lisboa. Tese Doutoramento Univ. Lisboa, 260 p.
'Pyroxene Group'
Reference: Martins da Pedra collection
Quartz
Formula: SiO2
Reference: Martins de Pedra
Quartz var: Carnelian
Reference: Martins de Pedra
Quartz var: Chalcedony
Formula: SiO2
Reference: Martins de Pedra
Zircon
Formula: Zr(SiO4)
Reference: Artur Neves; Souza-Brandão, V. (1913) - Sobre um crystal de Zircão-Jacintho, de Bellas junto a Lisboa. Comun. Com. Serv.

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
Magnetite4.BB.05Fe2+Fe3+2O4
Quartz4.DA.05SiO2
var: Carnelian4.DA.05SiO2
var: Chalcedony4.DA.05SiO2
Group 9 - Silicates
Augite9.DA.15(CaxMgyFez)(Mgy1Fez1)Si2O6
Forsterite9.AC.05Mg2SiO4
Kaersutite9.DE.15{Na}{Ca2}{Mg3AlTi}(Al2Si6O22)O2
Pyrope9.AD.25Mg3Al2(SiO4)3
Zircon9.AD.30Zr(SiO4)
Unclassified Minerals, Rocks, etc.
'Amphibole Supergroup'-AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
'Basaltic Hornblende'-
'Fayalite-Forsterite Series'-
'Garnet Group'-X3Z2(SiO4)3
'Hornblende'-
'Olivine Group'-M2SiO4
'Pyroxene Group'-

List of minerals arranged by Dana 8th Edition classification

Group 7 - MULTIPLE OXIDES
AB2X4
Magnetite7.2.2.3Fe2+Fe3+2O4
Group 51 - NESOSILICATES Insular SiO4 Groups Only
Insular SiO4 Groups Only with all cations in octahedral [6] coordination
Forsterite51.3.1.2Mg2SiO4
Insular SiO4 Groups Only with cations in [6] and >[6] coordination
Pyrope51.4.3a.1Mg3Al2(SiO4)3
Insular SiO4 Groups Only with cations in >[6] coordination
Zircon51.5.2.1Zr(SiO4)
Group 65 - INOSILICATES Single-Width,Unbranched Chains,(W=1)
Single-Width Unbranched Chains, W=1 with chains P=2
Augite65.1.3a.3(CaxMgyFez)(Mgy1Fez1)Si2O6
Group 66 - INOSILICATES Double-Width,Unbranched Chains,(W=2)
Amphiboles - Mg-Fe-Mn-Li subgroup
Kaersutite66.1.3a.18{Na}{Ca2}{Mg3AlTi}(Al2Si6O22)O2
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2
Unclassified Minerals, Mixtures, etc.
'Amphibole Supergroup'-AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
'Basaltic Hornblende'-
'Fayalite-Forsterite Series'-
'Garnet Group'-X3Z2(SiO4)3
'Hornblende'-
'Olivine Group'-M2SiO4
'Pyroxene Group'-
Quartz
var: Carnelian
-SiO2
var: Chalcedony-SiO2

List of minerals for each chemical element

HHydrogen
H Amphibole SupergroupAX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
OOxygen
O PyropeMg3Al2(SiO4)3
O Garnet GroupX3Z2(SiO4)3
O ZirconZr(SiO4)
O Amphibole SupergroupAX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
O Kaersutite{Na}{Ca2}{Mg3AlTi}(Al2Si6O22)O2
O Olivine GroupM2SiO4
O Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
O ForsteriteMg2SiO4
O MagnetiteFe2+Fe23+O4
O QuartzSiO2
O Quartz (var: Chalcedony)SiO2
FFluorine
F Amphibole SupergroupAX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
NaSodium
Na Kaersutite{Na}{Ca2}{Mg3AlTi}(Al2Si6O22)O2
MgMagnesium
Mg PyropeMg3Al2(SiO4)3
Mg Kaersutite{Na}{Ca2}{Mg3AlTi}(Al2Si6O22)O2
Mg Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Mg ForsteriteMg2SiO4
AlAluminium
Al PyropeMg3Al2(SiO4)3
Al Amphibole SupergroupAX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Al Kaersutite{Na}{Ca2}{Mg3AlTi}(Al2Si6O22)O2
SiSilicon
Si PyropeMg3Al2(SiO4)3
Si Garnet GroupX3Z2(SiO4)3
Si ZirconZr(SiO4)
Si Amphibole SupergroupAX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Si Kaersutite{Na}{Ca2}{Mg3AlTi}(Al2Si6O22)O2
Si Olivine GroupM2SiO4
Si Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Si ForsteriteMg2SiO4
Si QuartzSiO2
Si Quartz (var: Chalcedony)SiO2
ClChlorine
Cl Amphibole SupergroupAX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
CaCalcium
Ca Kaersutite{Na}{Ca2}{Mg3AlTi}(Al2Si6O22)O2
Ca Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
TiTitanium
Ti Amphibole SupergroupAX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2
Ti Kaersutite{Na}{Ca2}{Mg3AlTi}(Al2Si6O22)O2
FeIron
Fe Augite(CaxMgyFez)(Mgy1Fez1)Si2O6
Fe MagnetiteFe2+Fe23+O4
ZrZirconium
Zr ZirconZr(SiO4)

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Azevedo, L. M. (1652) - Primeira parte da Fundação, Antiquidades e Grandezas da mvi insigne Cidade de Lisboa ….dedicada ao Illvstre, e Inclito Senado della Officina Craesbeckiana, Lisboa, 398 p.
Souza-Brandão, V. (1913) - Sobre um crystal de Zircão-Jacintho, de Bellas junto a Lisboa. Comun. Com. Serv. Geol. Portugal, t. IX, pp. 125 – 145.
Choffat, P. (1914) - Les Mines de Grenats du Suimo. Comun. Com. Serv. Geol. Portugal, t X: pp. 186 – 198.
Azevedo, P. (1916) - As pedras preciosas de Lisboa (Belas) na História. Archeologo Português, 23, pp.158 – 202.
Provençal, L. (1953) - Description de l’Espagne d’Ahmed Al-Razî. In Al Andaluz, Madrid, vol. XVII, Fasc I.
Coelho, A.B. (1972) - Portugal na Espanha Árabe, Seara Nova, Lisboa, Vol. I.
Palácios, T. (1985) - Petrologia do Complexo vulcânico de Lisboa. Tese Doutoramento Univ. Lisboa, 260 p. (não publicado).
Guerra, A. (1995) - Plínio-o-Velho e a Lusitania. In Arqueologia & História Antiga I. Ed.Colibri F.L.L., Lisboa, 140 p.
Fernandes, L. S. (2002) - Cornelius Bocchus, auctor Lusitanus e notável de Salacia ?. In De Augusto a Adriano. Actas Colóquio Literatura Latina (Lisboa, 2000), EVPHROSYNE Centro de Estudos Clássicos: pp. 155 – 171.
M. Cachão; P. E. Fonseca; R. Galopim de Carvalho; C. Neto de Carvalho; R. Oliveira; M. M. Fonseca; J. Mata (2010): The Suimo gemstone garnet mine. From Plínio-o-Velho and Pauk Choffat to the present. e-Terra, Geopor, ISSN 1645-0388, Volume 18 – nº 20. [Abstract: We present the ancient Mount Suímo gemstone mine (Belas-Sintra County) as a potential site to be classified as a Geological Heritage site. This old mine of garnets (pyrope) produced semi-precious stones since, at least, Roman times, as described by Plínio-o-Velho. However, very few geological/mineralogical works, with the important exceptions of P. Choffat and T. Palácios, have been produced about it, contrasting to the vast list of historical references.].

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