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
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 ColorNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day GalleryPhotography

UM1998-04-CO:CaCeF

Valid as an unnamed mineral
This page is currently not sponsored. Click here to sponsor this page.
Formula:
Ca6Ce14(CO3)20F14
Crystal System:
Hexagonal
Regularly interstratified bastnäsite-(Ce)/synchysite-(Ce). Reported as "B8S6-I". Found as regular, mixed-layer structures within parisite-(Ce).

Co-described with 5 similar species: UM1998-05-CO:CaCeF, UM1998-06-CO:CaCeF, UM1998-07-CO:CaCeF, UM1998-08-CO:CaCeF, and UM1998-09-CO:CaCeF. Maximum diameter of this and the other species is ca. 0.5 micron.

Differs from UM1998-05-CO:CaCeF in layer arrangement and stacking sequence.


Hide all sections | Show all sections

Unique IdentifiersHide

Mindat ID:
54124
Long-form identifier:
mindat:1:1:54124:8

IMA Classification of UM1998-04-CO:CaCeFHide

IMA status notes:
Unnamed (probably valid)

Chemistry of UM1998-04-CO:CaCeFHide

Mindat Formula:
Ca6Ce14(CO3)20F14
Element Weights:
Element% weight
Ce53.476 %
O26.170 %
F7.251 %
Ca6.555 %
C6.549 %

Calculated from ideal end-member formula.

Crystallography of UM1998-04-CO:CaCeFHide

Crystal System:
Hexagonal
Cell Parameters:
a = 7.07 Å, c = 94.20 Å
Ratio:
a:c = 1 : 13.324
Unit Cell V:
4,077.75 ų (Calculated from Unit Cell)
Comment:
Space group is P6/m, P6, or P-6

Other InformationHide

Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

Internet Links for UM1998-04-CO:CaCeFHide

References for UM1998-04-CO:CaCeFHide

Localities for UM1998-04-CO:CaCeFHide

ⓘ - Click for references and further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (e.g. from pseudomorphs).

All localities listed without proper references should be considered as questionable.
China
 
Wu et al. (1998) +1 other reference
 
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: December 4, 2025 07:30:26 Page updated: August 17, 2025 15:08:02
Go to top of page