Log InRegister
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 ElementsBooks & Magazines
Minerals by PropertiesMinerals by ChemistryAdvanced Locality SearchRandom MineralRandom LocalitySearch by minIDLocalities Near MeSearch ArticlesSearch GlossaryMore Search Options
Search For:
Mineral Name:
Locality Name:
The Mindat ManualAdd a New PhotoRate PhotosLocality Edit ReportCoordinate Completion ReportAdd Glossary Item
Mining CompaniesStatisticsUsersMineral MuseumsMineral Shows & EventsThe Mindat DirectoryDevice Settings
Photo SearchPhoto GalleriesNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day GalleryMineral Photography


This page is currently not sponsored. Click here to sponsor this page.
4 - 5
Crystal System:
In allusion to its relationship to Fluocerite-(Ce), plus the "-(La)" suffix due to the dominance of lanthanum in the composition.
The lanthanum analogue of Fluocerite-(Ce).

Hide all sections | Show all sections

Classification of Fluocerite-(La)Hide


A : Simple halides, without H2O
C : M:X = 1:3

3 : AX3

8 : Halides - Fluorides, Chlorides, Bromides and Iodides; also Fluoborates and Fluosilicates
7 : Halides of the rare earth metals

Physical Properties of Fluocerite-(La)Hide

4 - 5 on Mohs scale

Optical Data of Fluocerite-(La)Hide

Uniaxial (-)
RI values:
nω = 1.609 nε = 1.603
Max Birefringence:
δ = 0.006
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:

Chemical Properties of Fluocerite-(La)Hide

IMA Formula:

Crystallography of Fluocerite-(La)Hide

Crystal System:
Class (H-M):
3m (3 2/m) - Hexagonal Scalenohedral
Space Group:
Cell Parameters:
a = 7.1871(4) Å, c = 7.3501(5) Å
a:c = 1 : 1.023
Unit Cell V:
328.80 ų (Calculated from Unit Cell)
For synthetic material.

X-Ray Powder DiffractionHide

Powder Diffraction Data:
3.60 Å(4)
3.19 Å(10)
2.07 Å(6)
2.01 Å(6)
1.796 Å(5.5)
1.736 Å(4)
1.048 Å(7)

Type Occurrence of Fluocerite-(La)Hide

Other Language Names for Fluocerite-(La)Hide

Related Minerals - Nickel-Strunz GroupingHide

3.AC.15Fluocerite-(Ce)(Ce,La)F3Trig. 3m (3 2/m) : P3c1

Related Minerals - Dana Grouping (8th Ed.)Hide,La)F3Trig. 3m (3 2/m) : P3c1

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

8.7.1Fluocerite-(Ce)(Ce,La)F3Trig. 3m (3 2/m) : P3c1
8.7.3Tveitite-(Y)(Y, Na)6Ca6Ca6F42Trig. 3 : R3
8.7.4Gagarinite-(Y)NaCaYF6Hex. 6/m : P63/m

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.

References for Fluocerite-(La)Hide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Trudy Mineralogicheskogo Muzeya Akademiya Nauk SSSR (1969): 19: 236.
Cheetham, A. K., Fender, B. E. F., Fuess, H., Wright, A. F. (1976): A powder neutron diffraction study of lanthanum and cerium trifluorides. Acta Crystallographica B32, 94-97.
American Mineralogist (1984): 69: 566.
American Mineralogist (1987): 72: 1031 (Appendix 2).
Zeitschrift für Kristallographie (1994): 209: 239.
Anthony, Bideaux, Bladh & Nichols (1997), Handbook of Mineralogy, Vol. III: 204.
Crystallography Reports (1998): 43: 557.
Acta Crystallographica: B41: 91-93.

Internet Links for Fluocerite-(La)Hide

Localities for Fluocerite-(La)Hide

This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for 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 (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
  • Henan
    • Nanyang
      • Xixia County
Qu, K., Sima, X., Zhou, H., Xiao, Z., Tu, J., Yin, Q., ... & Li, J. (2019). In situ LA-MC-ICP-MS and ID-TIMS U-Pb ages of bastnäsite-(Ce) and zircon from the Taipingzhen hydrothermal REE deposit: New constraints on the later Paleozoic granite-related U-REE mineralization in the North Qinling Orogen, Central China. Journal of Asian Earth Sciences, 173, 352-363.
  • Baden-Württemberg
    • Freiburg
      • Ortenaukreis
        • Oberwolfach
In several collections but sold specimens were never analytically confirmed - all were Ce-dominant [U. Kolitsch]; U. Kolitsch, J. Gröbner, F. Brandstätter and R. Bayerl (2010): Neufunde aus der Grube Clara im mittleren Schwarzwald (IV): Calcioandyrobertsit, Cotunnit, Gerhardtit, Khaidarkanit, Lukrahnit, Mckinstryit, Moolooit, Rhabdophan-(La), Rouait und Uricit. Lapis 35 (9), 22-27; 62 (in German).
Kazakhstan (TL)
  • Karaganda Region
    • Karkaraly
      • Kent Massif
American Mineralogist (1984): 69: 566.; Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
  • Västmanland County
    • Skinnskatteberg
      • Riddarhyttan
Öhman, L. , Nysten, P. and Langhof, J. (2005): Nya Bastnäs i Riddarhytte malmfält. Litiofilen, 22 (1): 14-38
Mineral and/or Locality  
Mindat.org is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization. Public Relations by Blytheweigh.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2020, except where stated. Most political location boundaries are © OpenStreetMap contributors. Mindat.org relies on the contributions of thousands of members and supporters.
Privacy Policy - Terms & Conditions - Contact Us Current server date and time: February 28, 2020 09:58:46 Page generated: February 21, 2020 02:58:25
Go to top of page