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
Gourim Mine, U.F São Martinho das Moitas e Covas do Rio, São Pedro do Sul, Viseu, Portugal


08766190017272257367205.jpg
Cassiterite

Gourim Mine, U.F São Martinho das Moitas e Covas do Rio, São Pedro do Sul, Viseu, Portugal
05302000017272301119136.jpg
Cassiterite

Gourim Mine, U.F São Martinho das Moitas e Covas do Rio, São Pedro do Sul, Viseu, Portugal
00617960017272301126879.jpg
Cassiterite

Gourim Mine, U.F São Martinho das Moitas e Covas do Rio, São Pedro do Sul, Viseu, Portugal
04410820017272301126358.jpg
Cassiterite

Gourim Mine, U.F São Martinho das Moitas e Covas do Rio, São Pedro do Sul, Viseu, Portugal
05669630017370458998805.jpg
Cassiterite

Gourim Mine, U.F São Martinho das Moitas e Covas do Rio, São Pedro do Sul, Viseu, Portugal
08866300017370458998821.jpg
Cassiterite

Gourim Mine, U.F São Martinho das Moitas e Covas do Rio, São Pedro do Sul, Viseu, Portugal
01807930017370459004433.jpg
Cassiterite

Gourim Mine, U.F São Martinho das Moitas e Covas do Rio, São Pedro do Sul, Viseu, Portugal
03557650017370459008255.jpg
Cassiterite

Gourim Mine, U.F São Martinho das Moitas e Covas do Rio, São Pedro do Sul, Viseu, Portugal
08766190017272257367205.jpg
Cassiterite

Gourim Mine, U.F São Martinho das Moitas e Covas do Rio, São Pedro do Sul, Viseu, Portugal
05302000017272301119136.jpg
Cassiterite

Gourim Mine, U.F São Martinho das Moitas e Covas do Rio, São Pedro do Sul, Viseu, Portugal
00617960017272301126879.jpg
Cassiterite

Gourim Mine, U.F São Martinho das Moitas e Covas do Rio, São Pedro do Sul, Viseu, Portugal
04410820017272301126358.jpg
Cassiterite

Gourim Mine, U.F São Martinho das Moitas e Covas do Rio, São Pedro do Sul, Viseu, Portugal
Locality type:Mine
Classification
Species:Cassiterite
Formula:SnO2
Confirmation
Validity:Confirmed
Confirmation Methods:Visually Identified
Associated Minerals Based on Photo Data:
Kaolinite1
Data
Mineral Data:Click here to view Cassiterite data
Locality Data:Click here to view Gourim Mine, U.F São Martinho das Moitas e Covas do Rio, São Pedro do Sul, Viseu, Portugal
Photo GalleryView Gallery (6 photos)
Data Identifiers
Mindat Occurrence Record ID:659766
Long-form Identifier:1:3:659766:5
GUID (UUID V4):0
Nearest other occurrences of Cassiterite
3.4km (2.1 miles) ⓘRegoufe Mines, Covelo de Paivó, Arouca, Aveiro, Portugal
3.5km (2.2 miles) ⓘRibeira de Baje e Loureiro Mines, Sul, São Pedro do Sul, Viseu, Portugal
6.0km (3.7 miles) ⓘPena Mine, U.F São Martinho das Moitas e Covas do Rio, São Pedro do Sul, Viseu, Portugal
6.4km (4.0 miles) ⓘRio de Frades Mines, Cabreiros, Cabreiros e Albergaria da Serra, Arouca, Aveiro, Portugal
6.6km (4.1 miles) ⓘJanarde e Covelo de Paivô Mining Field, Janarde, Arouca, Aveiro, Portugal
7.1km (4.4 miles) ⓘSerra de Sequeiros Mine, U.F São Martinho das Moitas e Covas do Rio, São Pedro do Sul, Viseu, Portugal
7.1km (4.4 miles) ⓘPadrão Mine, Manhouce, São Pedro do Sul, Viseu, Portugal
8.6km (5.3 miles) ⓘAvô Mine, Reriz e Gafanhão, Castro Daire, Viseu, Portugal
8.9km (5.5 miles) ⓘGândara Mine, São Félix, São Pedro do Sul, Viseu, Portugal
9.1km (5.7 miles) ⓘPoço das Fragas Mine, Bordonhos, São Pedro do Sul, Viseu, Portugal
References
LNEG Siorminp datababe ref 1379Sn
Ko Jansen collection
 
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 04:04:37
Go to top of page