Watch the Dallas Symposium LIVE, and fundraiser auction
Ticket proceeds support mindat.org! - click here...
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 Time
Minerals by PropertiesMinerals by ChemistryAdvanced 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 Quiz
Photo SearchPhoto GalleriesSearch by ColorNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day GalleryPhotography

Sahama, TH. G., Hytönen, Kai (1959) Delhayelite, a new silicate from the Belgian Congo. Mineralogical Magazine and Journal of the Mineralogical Society, 32 (244) 6-9 doi:10.1180/minmag.1959.032.244.02

Advanced
   -   Only viewable:
Reference TypeJournal (article/letter/editorial)
TitleDelhayelite, a new silicate from the Belgian Congo
JournalMineralogical Magazine and Journal of the Mineralogical Society
AuthorsSahama, TH. G.Author
Hytönen, KaiAuthor
Year1959 (March)Volume32
Issue244
PublisherMineralogical Society
Download URLhttps://rruff.info/doclib/MinMag/Volume_32/32-244-6.pdf+
DOIdoi:10.1180/minmag.1959.032.244.02
Generate Citation Formats
Mindat Ref. ID5491Long-form Identifiermindat:1:5:5491:5
GUID0
Full ReferenceSahama, TH. G., Hytönen, Kai (1959) Delhayelite, a new silicate from the Belgian Congo. Mineralogical Magazine and Journal of the Mineralogical Society, 32 (244) 6-9 doi:10.1180/minmag.1959.032.244.02
Plain TextSahama, TH. G., Hytönen, Kai (1959) Delhayelite, a new silicate from the Belgian Congo. Mineralogical Magazine and Journal of the Mineralogical Society, 32 (244) 6-9 doi:10.1180/minmag.1959.032.244.02
In(1959) Mineralogical Magazine Vol. 32 (244) Mineralogical Society
Abstract/NotesSummaryThe complex kalsilite-bearing melilite-nephelinite from Mt. Shaheru in the Belgian Congo with götzenite, combeite, and kirschsteinite contains yet another new silicate for which the name delhayelite is proposed.Delhayelite is orthorhombic with a 6·53, b 24·65, c 7·04 Å. Possible space-groups Pmn21 and Pmmn. Weak super-cell with doubled a-axis. Distinct cleavage parallel to (010). Birefringence weak. α ≈ β ≈ γ = 1·532. 2Vα = 83°. Optical orientation: a = α, b = γ, c = β. Sp. gr. 2·60. Chemical composition corresponds to the tentative formula (Na,K)4Ca5Al6Si32O80.18H2O.3(Na2,K2)(Cl2,F2,SO4).

Mineral Pages

MineralCitation Details
Delhayelite


See Also

These are possibly similar items as determined by title/reference text matching only.

 
and/or  
Mindat.org is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2025, 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.
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: August 15, 2025 13:24:45
Go to top of page