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.
Log InRegister
Quick Links : The Mindat ManualThe Rock H. Currier Digital LibraryMindat Newsletter [Free Download]
Home PageAbout MindatThe Mindat ManualHistory of MindatCopyright StatusWho We AreContact UsAdvertise on Mindat
Donate to MindatCorporate SponsorshipSponsor a PageSponsored PagesMindat AdvertisersAdvertise on Mindat
Learning CenterWhat is a mineral?The most common minerals on earthInformation for EducatorsMindat ArticlesThe ElementsThe Rock H. Currier Digital LibraryGeologic TimeExplore Fossils
Minerals by PropertiesMinerals by ChemistryMineral Visual ExplorerAdvanced Locality SearchRandom MineralRandom LocalitySearch by minIDLocalities Near MeSearch ArticlesSearch GlossaryMore Search Options
Search For:
Mineral Name:
Locality Name:
Keyword(s):
 
The Mindat ManualAdd a New PhotoRate PhotosLocality Edit ReportCoordinate Completion ReportAdd Glossary Item
Mining CompaniesStatisticsUsersMineral MuseumsClubs & OrganizationsMineral Shows & EventsThe Mindat DirectoryDevice SettingsThe Mineral QuizTime Machine
Photo SearchPhoto GalleriesSearch by ColorPhoto Colour ExplorerNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day GalleryPhotography

Cassiterite from
Poio Mine, Espírito Santo - Nossa Senhora da Graça e São Simão, Nisa, Portalegre, Portugal


Locality type:Mine
Classification
Species:Cassiterite
Formula:SnO2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Cassiterite data
Locality Data:Click here to view Poio Mine, Espírito Santo - Nossa Senhora da Graça e São Simão, Nisa, Portalegre, Portugal
Data Identifiers
Mindat Occurrence Record ID:918606
Long-form Identifier:1:3:918606:4
GUID (UUID V4):0
Nearest other occurrences of Cassiterite
0.0km (0.0 miles) ⓘPoio Mine, Amieira do Tejo, Nisa, Portalegre, Portugal
45.1km (28.0 miles) ⓘChafariz Velho Mine, Alcains, Castelo Branco, Castelo Branco, Portugal
50.9km (31.6 miles) ⓘRoncões and Fonte Serrana Mines, União de Freguesias de Escalos de Cima e Lousa, Castelo Branco, Castelo Branco, Portugal
53.9km (33.5 miles) ⓘEspadana - Inchidro and Tapada da Vargem Mines, Lardosa, Castelo Branco, Castelo Branco, Portugal
54.8km (34.1 miles) ⓘTapada dos Carvalhos e Carvalhal Mines, União de Freguesias Idanha-a-Nova e Alcafozes, Idanha-a-Nova, Castelo Branco, Portugal
56.2km (34.9 miles) ⓘFragas do Cavalo Mine, União de Freguesias de Oleiros e Amieira, Oleiros, Castelo Branco, Portugal
56.8km (35.3 miles) ⓘMonte das Areias e Vale da Torre Mine, Póvoa de Atalaia e Atalaia do Campo, Fundão, Castelo Branco, Portugal
60.9km (37.9 miles) ⓘSanta Eulália Mine (Fontalva), Santa Eulália, Elvas, Portalegre, Portugal
61.0km (37.9 miles) ⓘSanta Eulália Mining Field, Santa Eulália, Elvas, Portalegre, Portugal
61.4km (38.2 miles) ⓘVolta de São Mamede Mine, Janeiro de Cima e Bogas de Baixo, Fundão, Castelo Branco, Portugal
References
LNEG - Laboratório Nacional de Energia e Geologia, Siorminp ID 1568W
 
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: September 6, 2026 12:49:10
Go to top of page