Log InRegister
Search For:
Mineral Name:
Locality Name:
Keyword(s):
 
Home PageAbout MindatThe Mindat ManualHistory of MindatCopyright StatusWho We AreOur ScienceMindat Newsletter [Free Download]Contact Us
Donate to MindatSponsor a PageCorporate SponsorshipSponsored Pages
Learning CenterWhat Is a Mineral?The Most Common Minerals on EarthInformation for EducatorsMindat ArticlesMindat Newsletter [Free Download]The ElementsThe Mineral Quiz
Minerals by PropertiesMinerals by ChemistryMineral Visual ExplorerAdvanced Locality SearchRandom MineralRandom LocalitySearch by minIDMinerals by CountryAlphabetical Mineral IndexAlphabetical Locality SearchMineral Association SearchList of CountriesLocalities Near MePhoto SearchSearch ArticlesSearch GlossaryThe Rock H. Currier Digital LibraryMore Search Options
The Mindat ManualAdd a New PhotoRate PhotosLocality Edit ReportCoordinate Completion ReportAdd Glossary Item
MineralsPetrologyFossilsMeteoritesGeologic Time
Mining CompaniesStatisticsMineral MuseumsClubs & OrganizationsMineral Shows & EventsDevice SettingsTime Machine
Read DiscussionsIdentification Request
Photo SearchPhoto GalleriesSearch by ColourPhoto Colour ExplorerNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day GalleryPhotography

Trilithionite from
Fort-Dauphin, Taolagnaro District, Anosy, Madagascar


07121740017851490599145.jpg
Trilithionite

Fort-Dauphin, Taolagnaro District, Anosy, Madagascar
07121740017851490599145.jpg
Trilithionite

Fort-Dauphin, Taolagnaro District, Anosy, Madagascar
06397890017364672241607.jpg
Trilithionite

Fort-Dauphin, Taolagnaro District, Anosy, Madagascar
Locality type:City
Classification
Species:Trilithionite
Formula:K(Li1.5Al1.5)(AlSi3O10)(F,OH)2
Comments:Location based on a label which gives "Fort Dauphin" (a town) as the locality. There are not any (so far 2026) recorded lithium pegmatites in the Fort Dauphin area. One is located near Tranomaro in the Amboasary District,in the same region, Anosy Region, named Anjamhaiary, but such trilithionite specimemns are not known from this localtity. Similar specimens have been found in the central part of Madagascar.
Confirmation
Validity:Erroneously Reported
Data
Mineral Data:Click here to view Trilithionite data
Locality Data:Click here to view Fort-Dauphin, Taolagnaro District, Anosy, Madagascar
Data Identifiers
Mindat Occurrence Record ID:1643878
Long-form Identifier:1:3:1643878:1
GUID (UUID V4):0
References
Vandall KingIdentified by Vandall Thomas King: Dealer/Collection Label
 
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: October 13, 2026 13:17:58
Go to top of page