Log InRegister
Search For:
Mineral Name:
Locality Name:
Keyword(s):
 
Home PageAbout MindatThe Mindat ManualHistory of MindatCopyright StatusWho We AreOur ScienceMindat Newsletter [Free Download]Contact Us
Donate to MindatSponsor a PageCorporate SponsorshipSponsored Pages
Learning CenterWhat Is a Mineral?The Most Common Minerals on EarthInformation for EducatorsMindat ArticlesMindat Newsletter [Free Download]The ElementsThe Mineral Quiz
Search FormMinerals by PropertiesMinerals by ChemistryMineral Visual ExplorerAdvanced Locality SearchRandom MineralRandom LocalitySearch by minIDMinerals by CountryAlphabetical Mineral IndexAlphabetical Locality SearchMineral Association SearchList of CountriesLocalities Near MePhoto SearchSearch ArticlesSearch GlossaryThe Rock H. Currier Digital LibraryMore Search Options
The Mindat ManualAdd a New PhotoRate PhotosLocality Edit ReportCoordinate Completion ReportAdd Glossary Item
MineralsPetrologyFossilsMeteoritesGeologic Time
Mining CompaniesStatisticsMineral MuseumsClubs & OrganizationsMineral Shows & EventsDevice SettingsTime Machine
Read DiscussionsIdentification Request
Photo SearchPhoto GalleriesSearch by ColourPhoto Colour ExplorerNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day GalleryPhotography

Rio Maior, Santarém, Portugali
Regional Level Types
Rio MaiorMunicipality
SantarémDistrict
PortugalCountry

Coat of Arms of Rio MaiorFlag of Rio Maior
This page is currently not sponsored. Click here to sponsor this page.
PhotosMapsSearchMineralogy
07045310017272256771138.jpg
A view of a limestone quarry

Alcobertas, Rio Maior, Santarém, Portugal
04819970017272256783881.jpg
The salt pans of Rio Maior

Rio Maior, Santarém, Portugal
Largest Settlements:
PlacePopulation
Rio Maior12,064 (2018)
Mindat Locality ID:
132116
Long-form identifier:
mindat:1:2:132116:9
GUID (UUID V4):
0
Other Languages:
French:
Rio Maior, Santarém, Portugal
German:
Rio Maior, Distrikt Santarém, Portugal
Italian:
Rio Maior, distretto di Santarém, Portogallo
Portuguese:
Rio Maior, Santarém, Portugal
Russian:
Риу-Майор, Сантарен, Португалия
Simplified Chinese:
里奧馬約爾, 聖塔倫區, 葡萄牙
Spanish:
Rio Maior, Distrito de Santarém, Portugal
Arabic:
ريو مايور, محافظة سانتاريم, البرتغال
Asturian:
Rio Maior
Catalan:
Rio Maior, districte de Santarém, Portugal
Cebuano:
Rio Maior , Distrito de Santarém
Dutch:
Rio Maior, Santarém, Portugal
Farsi/Persian:
ریو مایور, ناحیه سانتاری, پرتغال
Finnish:
Rio Maior, Santarémin piiri, Portugali
Georgian:
რიო-მაიორი
Japanese:
リオマイオール, サンタレン県, ポルトガル
Kazakh (Cyrillic Script):
Риу-Майор
Korean:
히우마이오르, 산타렝현, 포르투갈
Mazanderani:
ریو مایور
Minnan / Hokkien-Taiwanese:
Rio Maior, Santarém Koān
Polish:
Rio Maior, Dystrykt Santarém, Portugalia
Romanian:
Rio Maior, Districtul Santarém, Portugalia
Swedish:
Rio Maior, Santarém, Portugal
Turkish:
Rio Maior, Santarém District, Portekiz
Ukrainian:
Ріу-Майор, Сантарен , Португалія
Vietnamese:
Rio Maior, Santarém, Bồ Đào Nha
Volapük:
Rio Maior
Waray:
Rio Maior, Santarém


A central region with many lime quarries, salt pans, a basalt quarry and inactive lignite and diatomite mines.

Registered mining concessions (up to 1962):
1749 Azinheira (diatomite), registered on 19-08-1930 (C.M. Rio Maior)
1748 São Paio no. 1 (diatomite), 18-08-1930 (C.M. Rio Maior)
CM17 Espadanal (coal), 04-01-1928
CM18 Quinta da Várzea (coal), 04-01-1928
1603 Espadanal no. 2 (coal), 06-05-1927 (C.M. Espadanal)
1598 Carneira no. 1 (coal), 12-03-1927
1599 Fieis de Deus (coal), 12-03-1927
1579 Lobo Morto (coal), 12-01-1927 (C.M. Quinta da Várzea)
1580 Ponte de São Gregório (coal), 12-01-1927 (C.M. Espadanal)
1573 Casal do Vale da Lagoa (coal), 07-12-1926 (C.M. Quinta da Várzea)
CM3 Rio Maior (diatomite), 04-07-1921
1013 Abum (diatomite), 14-04-1921 (C.M. Rio Maior)
1014 Cidral no. 1 (diatomite) 14-04-1921 (C.M. Rio Maior)
1015 São Paio (diatomite), 14-04-1921 (C.M. Rio Maior)
972 Quinta de São Paio (coal-lignite), 19-10-1920
792 Quinta da Várzea (coal), 16-03-1918 (C.M. Quinta da Várzea)
786 Espadanal (coal), 14-03-1918 (C.M. Espadanal)


Mindat Articles


The Calcite of Estremadura Limstone Massif by Martins da Pedra http://www.mindat.org/article.php/1826

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded from this region.


Mineral List

Mineral list contains entries from the region specified including sub-localities

9 valid minerals.

Rock Types Recorded


Rock list contains entries from the region specified including sub-localities

Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

ⓘ Analcime
Formula: Na(AlSi2O6) · H2O
References:
Rui Nunes' information (Rio Maior PDM 2011)Identified by Rui Nunes: Visual Identification
ⓘ Calcite
Formula: CaCO3
Localities: Reported from at least 12 localities in this region.
ⓘ Dolomite
Formula: CaMg(CO3)2
ⓘ 'Fayalite-Forsterite Series'
ⓘ Goethite
Formula: Fe3+O(OH)
References:
Rui Nunes info, Jan 2024Identified by Rui Nunes: Visual Identification
ⓘ Halite
Formula: NaCl
ⓘ 'Jet'
ⓘ 'Limonite'
ⓘ Magnetite
Formula: Fe2+Fe3+2O4
ⓘ Opal
Formula: SiO2 · nH2O
ⓘ 'Petrified Wood'
ⓘ Pyrite
Formula: FeS2
References:
Rui Nunes info, Jan 2024Identified by Rui Nunes: Visual Identification
ⓘ 'Pyroxene Group'
Formula: ADSi2O6
ⓘ Quartz
Formula: SiO2

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
ⓘPyrite2.EB.05aFeS2
Group 3 - Halides
ⓘHalite3.AA.20NaCl
Group 4 - Oxides and Hydroxides
ⓘMagnetite4.BB.05Fe2+Fe3+2O4
ⓘQuartz4.DA.05SiO2
ⓘOpal4.DA.10SiO2 · nH2O
ⓘGoethite4.FD.10Fe3+O(OH)
Group 5 - Nitrates and Carbonates
ⓘCalcite5.AB.05CaCO3
ⓘDolomite5.AB.10CaMg(CO3)2
Group 9 - Silicates
ⓘAnalcime9.GB.05Na(AlSi2O6) · H2O
Unclassified
ⓘ'Limonite'-
ⓘ'Petrified Wood'-
ⓘ'Fayalite-Forsterite Series'-
ⓘ'Jet'-
ⓘ'Pyroxene Group'-ADSi2O6

List of minerals for each chemical element

HHydrogen
Hⓘ AnalcimeNa(AlSi2O6) · H2O
Hⓘ GoethiteFe3+O(OH)
Hⓘ OpalSiO2 · nH2O
CCarbon
Cⓘ CalciteCaCO3
Cⓘ DolomiteCaMg(CO3)2
OOxygen
Oⓘ AnalcimeNa(AlSi2O6) · H2O
Oⓘ CalciteCaCO3
Oⓘ DolomiteCaMg(CO3)2
Oⓘ GoethiteFe3+O(OH)
Oⓘ MagnetiteFe2+Fe23+O4
Oⓘ OpalSiO2 · nH2O
Oⓘ QuartzSiO2
Oⓘ Fayalite-Forsterite Series
Oⓘ Pyroxene GroupADSi2O6
NaSodium
Naⓘ AnalcimeNa(AlSi2O6) · H2O
Naⓘ HaliteNaCl
MgMagnesium
Mgⓘ DolomiteCaMg(CO3)2
Mgⓘ Fayalite-Forsterite Series
AlAluminium
Alⓘ AnalcimeNa(AlSi2O6) · H2O
SiSilicon
Siⓘ AnalcimeNa(AlSi2O6) · H2O
Siⓘ OpalSiO2 · nH2O
Siⓘ QuartzSiO2
Siⓘ Fayalite-Forsterite Series
Siⓘ Pyroxene GroupADSi2O6
SSulfur
Sⓘ PyriteFeS2
ClChlorine
Clⓘ HaliteNaCl
CaCalcium
Caⓘ CalciteCaCO3
Caⓘ DolomiteCaMg(CO3)2
FeIron
Feⓘ GoethiteFe3+O(OH)
Feⓘ MagnetiteFe2+Fe23+O4
Feⓘ PyriteFeS2
Feⓘ Fayalite-Forsterite Series

Fossils

This region is too big or complex to display the fossil list, try looking at smaller subregions.

Other Databases

Wikipedia:https://en.wikipedia.org/wiki/Rio_Maior
Wikidata ID:Q941958
GeoNames ID:8010607

Localities in this Region

Other Regions, Features and Areas that Intersect

Eurasian PlateTectonic Plate
EuropeContinent

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

 
and/or  
Mindat.org® is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization. Mindat® and mindat.org® are registered trademarks of the Hudson Institute of Mineralogy.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2026, except where stated. Most political location boundaries are © OpenStreetMap contributors. Mindat.org relies on the contributions of thousands of members and supporters. Founded in 2000 by Jolyon Ralph and Ida Chau.
Content on this site may not be used to train, fine-tune, or otherwise develop artificial intelligence or machine learning models without prior written permission - see our Terms & Conditions.
To cite: Ralph, J., Von Bargen, D., Martynov, P., Zhang, J., Que, X., Prabhu, A., Morrison, S. M., Li, W., Chen, W., & Ma, X. (2025). Mindat.org: The open access mineralogy database to accelerate data-intensive geoscience research. American Mineralogist, 110(6), 833–844. doi:10.2138/am-2024-9486.
Privacy Policy - Terms & Conditions - Contact Us / DMCA issues - Report a bug/vulnerability Current server date and time: October 20, 2026 19:37:39 Page updated: September 20, 2026 19:54:33
Go to top of page