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

Orthoclase from
Monte da Penha, Guimarães, Braga, Portugal


01625470017272076178587.jpg
Orthoclase

Monte da Penha, Guimarães, Braga, Portugal
03212560017272076175115.jpg
Orthoclase

Monte da Penha, Guimarães, Braga, Portugal
04738110017272076175677.jpg
Orthoclase

Monte da Penha, Guimarães, Braga, Portugal
01625470017272076178587.jpg
Orthoclase

Monte da Penha, Guimarães, Braga, Portugal
03212560017272076175115.jpg
Orthoclase

Monte da Penha, Guimarães, Braga, Portugal
04738110017272076175677.jpg
Orthoclase

Monte da Penha, Guimarães, Braga, Portugal
01625470017272076178587.jpg
Orthoclase

Monte da Penha, Guimarães, Braga, Portugal
03212560017272076175115.jpg
Orthoclase

Monte da Penha, Guimarães, Braga, Portugal
04738110017272076175677.jpg
Orthoclase

Monte da Penha, Guimarães, Braga, Portugal
Locality type:Mountain
Classification
Species:Orthoclase
Formula:K(AlSi3O8)
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Orthoclase data
Locality Data:Click here to view Monte da Penha, Guimarães, Braga, Portugal
Photo GalleryView Gallery (3 photos)
Data Identifiers
Mindat Occurrence Record ID:452643
Long-form Identifier:1:3:452643:8
GUID (UUID V4):0
Nearest other occurrences of Orthoclase
33.8km (21.0 miles) ⓘCovide quarry, Covide, Terras de Bouro, Braga, Portugal
40.3km (25.0 miles) ⓘLamas de Olo pluton, Vila Marim, Vila Real, Vila Real, Portugal
40.6km (25.3 miles) ⓘLas Sombras Mine, Lobios, Ourense, Galicia, Spain
41.3km (25.7 miles) ⓘBarral, Vila Chã (São João Baptista e Santiago), Ponte da Barca, Viana do Castelo, Portugal
42.2km (26.2 miles) ⓘBorrageiro Mine, Cabril, Montalegre, Vila Real, Portugal
50.2km (31.2 miles) ⓘCabanas Mine, Arcozelo, Ponte de Lima, Viana do Castelo, Portugal
61.4km (38.2 miles) ⓘSalas dam, Muiños, Ourense, Galicia, Spain
64.5km (40.0 miles) ⓘCastanheira, Albergaria da Serra, Cabreiros e Albergaria da Serra, Arouca, Aveiro, Portugal
67.2km (41.8 miles) ⓘMacieira quarry, Boivão, Valença do Minho, Viana do Castelo, Portugal
69.9km (43.4 miles) ⓘSanfins quarry, Gondomil e Safins, Valença do Minho, Viana do Castelo, Portugal
References
Martins da Pedra colection
 
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 00:39:26
Go to top of page