Vote for your favorite mineral in #MinCup26! - Quartz vs. Asagiite
It's a classic vs a newbie as the most common named mineral in the crust Quartz is up against an exceedingly-rare sea foam-green mineral discovered just a few years ago Asagiite.
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Alter Pedroso, Alter do Chão, Alter do Chão, Portalegre, Portugali
Regional Level Types
Alter PedrosoOutcrop
Alter do ChãoParish
Alter do ChãoMunicipality
PortalegreDistrict
PortugalCountry

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PhotosMapsSearch
00974070017272244817069.jpg
A view of the locality

Alter Pedroso, Alter do Chão, Alter do Chão, Portalegre, Portugal
02074980017430091767173.jpg
Medieval ruins

Alter Pedroso, Alter do Chão, Alter do Chão, Portalegre, Portugal
09422110017272244827851.jpg
Landscape

Alter Pedroso, Alter do Chão, Alter do Chão, Portalegre, Portugal
00974070017272244817069.jpg
A view of the locality

Alter Pedroso, Alter do Chão, Alter do Chão, Portalegre, Portugal
06992450017429984991556.jpg
Medieval ruins

Alter Pedroso, Alter do Chão, Alter do Chão, Portalegre, Portugal
09422110017272244827851.jpg
Landscape

Alter Pedroso, Alter do Chão, Alter do Chão, Portalegre, Portugal
00974070017272244817069.jpg
A view of the locality

Alter Pedroso, Alter do Chão, Alter do Chão, Portalegre, Portugal
02074980017430091767173.jpg
Medieval ruins

Alter Pedroso, Alter do Chão, Alter do Chão, Portalegre, Portugal
Latitude & Longitude (WGS84):
39° 11' 19'' North , 7° 37' 22'' West
Latitude & Longitude (decimal):
39.18887,-7.62293
GRN:
N27W05
Type:
Outcrop
Köppen climate type:
Csa : Hot-summer Mediterranean climate
Nearest Settlements:
PlacePopulationDistance
Alter do Chão2,600 (2018)3.2km
Vale da Amoreira10,828 (2018)14.8km
Portalegre15,581 (2018)20.2km
Monforte3,329 (2018)22.0km
Gáfete856 (2018)25.2km
Mindat Locality ID:
107963
Long-form identifier:
mindat:1:2:107963:3
GUID (UUID V4):
0
Name(s) in local language(s):
Alter Pedroso, Alter do Chão, Distrito de Portalegre, Portugal


A small village in the Alter do Chão municipality.
Syenites, riebeckite outcrops.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


6 valid minerals.

Detailed Mineral List:

ⓘ Aegirine
Formula: NaFe3+Si2O6
ⓘ Albite
Formula: Na(AlSi3O8)
ⓘ 'Feldspar Group'
ⓘ Fluorite
Formula: CaF2
Description: Massas cristalinas violetas sobre riebequite de Alter Pedroso, Alter do Chão, Portalegre (IST Lisboa).
References:
IST Lisboa
ⓘ Quartz
Formula: SiO2
ⓘ Riebeckite
Formula: ◻[Na2][Fe2+3Fe3+2]Si8O22(OH)2
ⓘ Zircon
Formula: Zr(SiO4)

Gallery:

ⓘ 'Feldspar Group'
trans.png
Feldspar Group, etc.

Alter Pedroso, Alter do Chão, Alter do Chão, Portalegre, Portugal
trans.png
Feldspar Group, etc.

Alter Pedroso, Alter do Chão, Alter do Chão, Portalegre, Portugal
trans.png
Feldspar Group, etc.

Alter Pedroso, Alter do Chão, Alter do Chão, Portalegre, Portugal
trans.png
Feldspar Group, etc.

Alter Pedroso, Alter do Chão, Alter do Chão, Portalegre, Portugal
trans.png
Feldspar Group, etc.

Alter Pedroso, Alter do Chão, Alter do Chão, Portalegre, Portugal
trans.png
Feldspar Group, etc.

Alter Pedroso, Alter do Chão, Alter do Chão, Portalegre, Portugal
◻[Na2][Fe2+3Fe3+2]Si8O22(OH)2ⓘ Riebeckite
trans.png
Riebeckite

Alter Pedroso, Alter do Chão, Alter do Chão, Portalegre, Portugal
trans.png
Riebeckite

Alter Pedroso, Alter do Chão, Alter do Chão, Portalegre, Portugal
trans.png
Riebeckite

Alter Pedroso, Alter do Chão, Alter do Chão, Portalegre, Portugal
trans.png
Riebeckite

Alter Pedroso, Alter do Chão, Alter do Chão, Portalegre, Portugal
trans.png
Riebeckite

Alter Pedroso, Alter do Chão, Alter do Chão, Portalegre, Portugal
trans.png
Riebeckite

Alter Pedroso, Alter do Chão, Alter do Chão, Portalegre, Portugal
trans.png
Riebeckite

Alter Pedroso, Alter do Chão, Alter do Chão, Portalegre, Portugal
trans.png
Riebeckite

Alter Pedroso, Alter do Chão, Alter do Chão, Portalegre, Portugal
Zr(SiO4)ⓘ Zircon
trans.png
Zircon

Alter Pedroso, Alter do Chão, Alter do Chão, Portalegre, Portugal
trans.png
Zircon

Alter Pedroso, Alter do Chão, Alter do Chão, Portalegre, Portugal
trans.png
Zircon

Alter Pedroso, Alter do Chão, Alter do Chão, Portalegre, Portugal
trans.png
Zircon

Alter Pedroso, Alter do Chão, Alter do Chão, Portalegre, Portugal
trans.png
Zircon

Alter Pedroso, Alter do Chão, Alter do Chão, Portalegre, Portugal
trans.png
Zircon

Alter Pedroso, Alter do Chão, Alter do Chão, Portalegre, Portugal

List of minerals arranged by Strunz 10th Edition classification

Group 3 - Halides
ⓘFluorite3.AB.25CaF2
Group 4 - Oxides and Hydroxides
ⓘQuartz4.DA.05SiO2
Group 9 - Silicates
ⓘZircon9.AD.30Zr(SiO4)
ⓘAegirine9.DA.25NaFe3+Si2O6
ⓘRiebeckite9.DE.25◻[Na2][Fe2+3Fe3+2]Si8O22(OH)2
ⓘAlbite9.FA.35Na(AlSi3O8)
Unclassified
ⓘ'Feldspar Group'-

List of minerals for each chemical element

HHydrogen
Hⓘ Riebeckite◻[Na2][Fe32+Fe23+]Si8O22(OH)2
OOxygen
Oⓘ AegirineNaFe3+Si2O6
Oⓘ AlbiteNa(AlSi3O8)
Oⓘ QuartzSiO2
Oⓘ Riebeckite◻[Na2][Fe32+Fe23+]Si8O22(OH)2
Oⓘ ZirconZr(SiO4)
FFluorine
Fⓘ FluoriteCaF2
NaSodium
Naⓘ AegirineNaFe3+Si2O6
Naⓘ AlbiteNa(AlSi3O8)
Naⓘ Riebeckite◻[Na2][Fe32+Fe23+]Si8O22(OH)2
AlAluminium
Alⓘ AlbiteNa(AlSi3O8)
SiSilicon
Siⓘ AegirineNaFe3+Si2O6
Siⓘ AlbiteNa(AlSi3O8)
Siⓘ QuartzSiO2
Siⓘ Riebeckite◻[Na2][Fe32+Fe23+]Si8O22(OH)2
Siⓘ ZirconZr(SiO4)
CaCalcium
Caⓘ FluoriteCaF2
FeIron
Feⓘ AegirineNaFe3+Si2O6
Feⓘ Riebeckite◻[Na2][Fe32+Fe23+]Si8O22(OH)2
ZrZirconium
Zrⓘ ZirconZr(SiO4)

Other Regions, Features and Areas containing this locality

Eurasian PlateTectonic Plate
EuropeContinent
Iberian PeninsulaPeninsula

This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.

References

Mendes, F. J.; Silveira, Marieta da; Assunção, C. F. Torre de (1957) O zircão de Alter Pedroso, Alter do Chão, e o do filão da Boa Esperança, Ribaué, Moçambique: estudo radiográfico [Zircon from Alter Pedroso, Alter do Chão, and from the Boa Esperança vein, Ribaué, Mozambique: radiographic study]. Boletim do Museu e Laboratório Mineralógico e Geológico da Faculdade de Ciências da Universidade de Lisboa S. 7 (25). Museu e Laboratório Mineraloǵico e Geológico da Faculdade de Ciencias, Universidade de Lisboa p.3-13.
SERRALHEIRO, António - Esboço geológico da região de Alter Pedroso; Boletim da Sociedade Geológica de Portugal - Vol. XII, fasc. III, (1957-58), p. 3-12, [4 p.]
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