Vote for your favorite mineral in #MinCup26! - Cuprite vs. Orpiment
It's a fiery match of vibrant red Cuprite and just as saturated orange Orpiment battle 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

Allophane from
Santa Creu d'Olorda, Collserola mountain range, Barcelona city, Barcelonès, Barcelona, Catalonia, Spain


07449660017364191695407.jpg
Allophane

Santa Creu d'Olorda, Collserola mountain range, Barcelona city, Barcelonès, Barcelona, Catalonia, Spain
06441060017272008176969.jpg
Allophane

Santa Creu d'Olorda, Collserola mountain range, Barcelona city, Barcelonès, Barcelona, Catalonia, Spain
00348390017360824623592.jpg
Allophane

Santa Creu d'Olorda, Collserola mountain range, Barcelona city, Barcelonès, Barcelona, Catalonia, Spain
09367780017884518253422.jpg
Allophane

Santa Creu d'Olorda, Collserola mountain range, Barcelona city, Barcelonès, Barcelona, Catalonia, Spain
07449660017364191695407.jpg
Allophane

Santa Creu d'Olorda, Collserola mountain range, Barcelona city, Barcelonès, Barcelona, Catalonia, Spain
09231400017390957277560.jpg
Allophane

Santa Creu d'Olorda, Collserola mountain range, Barcelona city, Barcelonès, Barcelona, Catalonia, Spain
09630720017364191692661.jpg
Allophane

Santa Creu d'Olorda, Collserola mountain range, Barcelona city, Barcelonès, Barcelona, Catalonia, Spain
00803340017884502194098.jpg
Allophane

Santa Creu d'Olorda, Collserola mountain range, Barcelona city, Barcelonès, Barcelona, Catalonia, Spain
02469410017364191706500.jpg
Allophane

Santa Creu d'Olorda, Collserola mountain range, Barcelona city, Barcelonès, Barcelona, Catalonia, Spain
06441060017272008176969.jpg
Allophane

Santa Creu d'Olorda, Collserola mountain range, Barcelona city, Barcelonès, Barcelona, Catalonia, Spain
03896210017413509506154.jpg
Allophane

Santa Creu d'Olorda, Collserola mountain range, Barcelona city, Barcelonès, Barcelona, Catalonia, Spain
06905980017886153234665.jpg
Allophane

Santa Creu d'Olorda, Collserola mountain range, Barcelona city, Barcelonès, Barcelona, Catalonia, Spain
Classification
Species:Allophane
Formula:(Al2O3)(SiO2)1.3-2 · 2.5-3H2O
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Allophane data
Locality Data:Click here to view Santa Creu d'Olorda, Collserola mountain range, Barcelona city, Barcelonès, Barcelona, Catalonia, Spain
Photo GalleryView Gallery (4 photos)
Data Identifiers
Mindat Occurrence Record ID:231916
Long-form Identifier:1:3:231916:2
GUID (UUID V4):0
Localities for Allophane in this Region
Sot de les Mines, Santa Creu d'Olorda, Collserola mountain range, Barcelona city, Barcelonès, Barcelona, Catalonia, Spain
Nearest other occurrences of Allophane
0.0km (0.0 miles) ⓘSot de les Mines, Santa Creu d'Olorda, Collserola mountain range, Barcelona city, Barcelonès, Barcelona, Catalonia, Spain
0.5km (0.3 miles) ⓘSansón quarry (Sanson quarry), Puig d'Olorda, Barcelona, Barcelonès, Barcelona, Catalonia, Spain
1.1km (0.7 miles) ⓘCan Tintorer Mines, Sant Bartomeu de la Quadra, Molins de Rei, Baix Llobregat, Barcelona, Catalonia, Spain
12.4km (7.7 miles) ⓘMontcada Hill Quarry, Montcada i Reixac, Vallès Occidental, Barcelona, Catalonia, Spain
13.1km (8.1 miles) ⓘElvira Mine, Bruguers, Gavà, Baix Llobregat, Barcelona, Catalonia, Spain
13.5km (8.4 miles) ⓘCan Margarit quarry, Gavà, Baix Llobregat, Barcelona, Catalonia, Spain
98.6km (61.3 miles) ⓘSan Miguel Mine (Maura prospect), Ribes de Freser, Girona, Catalonia, Spain
References
Moro, M. C., Cembranos, M. L., Fernandez, A. (2000) Allophane-like materials in the weathered zones of Silurian phosphate-rich veins from Santa Creu d'Olorda (Barcelona, Spain) Clay Minerals, 35 (2) 411-421 doi:10.1180/000985500546873
 
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 5, 2026 13:35:24
Go to top of page