Vote for your favorite mineral in #MinCup26! - Sphalerite vs. Anorthite
Both zinc ore Sphalerite and calcium plagioclase feldspar Anorthite have perfect cleavage that will split cleanly if you hit them with a hammer, but only one can claim a larger split of 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

Aenigmatite from
Østre Brattholmen, Porsgrunn, Telemark, Norway


06181340017272078144544.jpg
Aenigmatite, etc.

Østre Brattholmen, Porsgrunn, Telemark, Norway
07145140017370453839722.jpg
Aenigmatite, etc.

Østre Brattholmen, Porsgrunn, Telemark, Norway
06181340017272078144544.jpg
Aenigmatite, etc.

Østre Brattholmen, Porsgrunn, Telemark, Norway
07145140017370453839722.jpg
Aenigmatite, etc.

Østre Brattholmen, Porsgrunn, Telemark, Norway
06181340017272078144544.jpg
Aenigmatite, etc.

Østre Brattholmen, Porsgrunn, Telemark, Norway
07145140017370453839722.jpg
Aenigmatite, etc.

Østre Brattholmen, Porsgrunn, Telemark, Norway
Locality type:Island
Classification
Species:Aenigmatite
Formula:Na4[Fe102+Ti2]O4[Si12O36]
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Aegirine2
Natrolite2
- var Spreustein2
Annite2
Astrophyllite2
Microcline2
Data
Mineral Data:Click here to view Aenigmatite data
Locality Data:Click here to view Østre Brattholmen, Porsgrunn, Telemark, Norway
Data Identifiers
Mindat Occurrence Record ID:531965
Long-form Identifier:1:3:531965:7
GUID (UUID V4):0
References
Andersen, Frode; Berge, Svein Arne; Burvald, Ingulv (1996) Die Mineralien des Langesundsfjords und des umgebenden Larvikit-Gebietes, Oslo-Region, Norwegen. Mineralien Welt, 7 (4). 21-100
Åsheim, Arne, Berge, Svein Arne, Larsen, Alf Olav (2008) Sporelementer i ænigmatitt fra Larvik plutonkompleks. Norsk Bergverksmuseum Skrift 38, 63-65
 
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 3, 2026 12:12:53
Go to top of page