Vote for your favorite mineral in #MinCup26! - Arsenuranylite vs. Talc
It's a pair of soft and lovely minerals as Stichtite and Talc compete for your votes.
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

Prehnite from
Val Giuv, Tujetsch, Surselva Region, Grisons, Switzerland


03682040017367339571764.jpg
Prehnite, etc.

Val Giuv, Tujetsch, Surselva Region, Grisons, Switzerland
03682040017367339571764.jpg
Prehnite, etc.

Val Giuv, Tujetsch, Surselva Region, Grisons, Switzerland
03682040017367339571764.jpg
Prehnite, etc.

Val Giuv, Tujetsch, Surselva Region, Grisons, Switzerland
Locality type:Valley
Classification
Species:Prehnite
Formula:Ca2Al2Si3O10(OH)2
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Quartz1
Data
Mineral Data:Click here to view Prehnite data
Locality Data:Click here to view Val Giuv, Tujetsch, Surselva Region, Grisons, Switzerland
Data Identifiers
Mindat Occurrence Record ID:799351
Long-form Identifier:1:3:799351:0
GUID (UUID V4):0
Nearest other occurrences of Prehnite
3.5km (2.2 miles) ⓘCaschlè, Val Strem, Tujetsch, Surselva Region, Grisons, Switzerland
5.7km (3.5 miles) ⓘPlauncas Calmut, Val Strem, Tujetsch, Surselva Region, Grisons, Switzerland
6.1km (3.8 miles) ⓘCuolm da Vi, Sedrun, Tujetsch, Surselva Region, Grisons, Switzerland
6.4km (4.0 miles) ⓘVal Nalps, Tujetsch, Surselva Region, Grisons, Switzerland
7.3km (4.6 miles) ⓘTeif Valley, Meitschligen, Gurtnellen, Reuss Valley, Uri, Switzerland
7.5km (4.7 miles) ⓘVal Maighels, Tujetsch, Surselva Region, Grisons, Switzerland
11.0km (6.8 miles) ⓘMuotta Naira (Muota Naira; Motta Naira; Muota Nera), Piz Lai Blau, Val Nalps, Tujetsch, Surselva Region, Grisons, Switzerland
14.6km (9.1 miles) ⓘUpper Cavrein Alp, Gronda da Cavrein Valley, Disentis, Surselva Region, Grisons, Switzerland
15.1km (9.4 miles) ⓘGronda da Cavrein Valley, Disentis, Surselva Region, Grisons, Switzerland
15.2km (9.5 miles) ⓘGroßtal, Zumdorf, Hospental, Urseren, Uri, Switzerland
References
Koenigsberger, J.G. (1940) Die zentralalpinen Minerallagerstätten, Wepf und Co. Verlag, Basel.
 
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 8, 2026 07:21:52
Go to top of page