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Ulf Hålenius
lemon yellow to ochre yellow
Dull, Earthy
Specific Gravity:
Crystal System:
Named in 2004 by Dan Holtstam, Jekabs Grins, and Per Nysten in honor of Prof. Ulf Hålenius (b. 1951), professor and Director of the Mineralogy Department at the Natural History Museum, Stockholm, Sweden, for his contributions to the spectroscopy of minerals and the mineral sciences in general.
Isostructural with:
This page provides mineralogical data about Håleniusite-(La).

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Classification of Håleniusite-(La)Hide

Approval Year:
First Published:

D : Oxyhalides, hydroxyhalides and related double halides
E : With Rare-Earth Elements

Physical Properties of Håleniusite-(La)Hide

Dull, Earthy
lemon yellow to ochre yellow
light yellow
6.5 g/cm3 (Measured)    

Chemical Properties of Håleniusite-(La)Hide

IMA Formula:

Crystallography of Håleniusite-(La)Hide

Crystal System:
Class (H-M):
m3m (4/m 3 2/m) - Hexoctahedral
Space Group:
Cell Parameters:
a = 5.628 Å
Unit Cell V:
178.26 ų (Calculated from Unit Cell)

X-Ray Powder DiffractionHide

Powder Diffraction Data:
3.25 (100)
1.99 (60)
1.69 (45)

Occurrences of Håleniusite-(La)Hide

Paragenetic Mode(s):

Type Occurrence of Håleniusite-(La)Hide

General Appearance of Type Material:
powdery masses
Place of Conservation of Type Material:
Swedish Museum of Natural History in Stockholm (catalogue no.
Geological Setting of Type Material:
Skarn. In vugs and leaching zones of massive ferriallanite-(Ce), intimately intergrown with cerite-(Ce) and bastnäsite-(La)
Associated Minerals at Type Locality:
Holtstam, D., Grins, J., Nysten, P. (2004) Håleniusite-(La) from the Bastnäs deposit, Västmanland, Sweden: A new REE oxyfluoride mineral species. Canadian Mineralogist: 42(4): 1097-1103.

Synonyms of Håleniusite-(La)Hide

Other Language Names for Håleniusite-(La)Hide

Simplified Chinese:氟铈镧石
Traditional Chinese:氟鈰鑭石

Common AssociatesHide

Associated Minerals Based on Photo Data:
Brochantite11 photos of Håleniusite-(La) associated with Brochantite on
Cerite-(Ce)7 photos of Håleniusite-(La) associated with Cerite-(Ce) on
Ferriallanite-(Ce)7 photos of Håleniusite-(La) associated with Ferriallanite-(Ce) on
Bastnäsite-(La)4 photos of Håleniusite-(La) associated with Bastnäsite-(La) on
Törnebohmite-(Ce)4 photos of Håleniusite-(La) associated with Törnebohmite-(Ce) on

Fluorescence of Håleniusite-(La)Hide

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 Håleniusite-(La)Hide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Holtstam, D., Grins, J., Nysten, P. (2004) Håleniusite-(La) from the Bastnäs deposit, Västmanland, Sweden: A new REE oxyfluoride mineral species. Canadian Mineralogist: 42(4): 1097-1103.
Piilonen, P.C., Ercit, T.S., Roberts, A.C. (2005) New mineral names. American Mineralogist: 90: 768-773.

Internet Links for Håleniusite-(La)Hide

Localities for Håleniusite-(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.
  • Jämtland
Lindh, A. (2012). Minute-sized crystals of HFSE minerals in evolved, fluorite-bearing granite, an example from the Sörvik granite, central Sweden. GFF, 134(4), 283-294.
  • Västmanland
    • Skinnskatteberg
      • Riddarhyttan
Holtstam, D., Grins, J. & Nysten, P. (2004): Håleniusite-(La) from the Bastnäs deposit, Västmanland, Sweden: A new REE oxyfluoride mineral species. Canadian Mineralogist, 42(4): 1097-1103
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