Håleniusite-(La)
A valid IMA mineral species
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About Håleniusite-(La)
Ulf Hålenius
Formula:
(La,Ce)OF
Colour:
lemon yellow to ochre yellow
Lustre:
Dull, Earthy
Specific Gravity:
6.5
Crystal System:
Isometric
Name:
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:
Old note: A possible Ce-dominant analogue is IMA-coded as UM1994-05-F:OREE.
New note: the Ce analogue is accepted, as håleniusite-(Ce).
New note: the Ce analogue is accepted, as håleniusite-(Ce).
Name Encoding
ASCII-7:
Haleniusite-(La)
Unique Identifiers
Mindat ID:
25691
Long-form identifier:
mindat:1:1:25691:5
Similar Names
| Håleniusite | A synonym | |
| Håleniusite-(Ce) | A valid IMA mineral species | (Ce,La)OF |
IMA Classification of Håleniusite-(La)
Approved
IMA Formula:
LaOF
Approval year:
2003
First published:
2004
Classification of Håleniusite-(La)
3.DE.05
3 : HALIDES
D : Oxyhalides, hydroxyhalides and related double halides
E : With Rare-Earth Elements
3 : HALIDES
D : Oxyhalides, hydroxyhalides and related double halides
E : With Rare-Earth Elements
Mineral Symbols
As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
| Symbol | Source | Reference for Standard |
|---|---|---|
| Hål-La | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Physical Properties of Håleniusite-(La)
Dull, Earthy
Colour:
Lemon yellow to ochre yellow
Streak:
Light yellow
Density:
6.5 g/cm3 (Measured)
Chemistry of Håleniusite-(La)
Mindat Formula:
(La,Ce)OF
Elements listed:
Crystallography of Håleniusite-(La)
Crystal System:
Isometric
Class (H-M):
m3m(4/m32/m) - Hexoctahedral
Space Group:
Im3m
Cell Parameters:
a = 5.628 Å
Unit Cell V:
178.26 ų (Calculated from Unit Cell)
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 3.25 Å | (100) |
| 1.99 Å | (60) |
| 1.69 Å | (45) |
Type Occurrence of Håleniusite-(La)
General Appearance of Type Material:
powdery masses
Place of Conservation of Type Material:
Swedish Museum of Natural History in Stockholm (catalogue no.
20030025).
20030025).
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:
Synonyms of Håleniusite-(La)
Håleniusite (in part)
Other Language Names for Håleniusite-(La)
Dutch:Håleniusiet-(La)
German:Håleniusit-(La)
Russian:Халениусит-(La)
Simplified Chinese:氟铈镧石
Traditional Chinese:氟鈰鑭石
Common Associates
Associations Based on Photo Data:
| 19 photos of Håleniusite-(La) associated with Brochantite | Cu4(SO4)(OH)6 |
| 15 photos of Håleniusite-(La) associated with Cerite-(CeCa) | (Ce7Ca2)◻Mg(SiO4)3(SiO3OH)4(OH)3 |
| 15 photos of Håleniusite-(La) associated with Ferriallanite-(Ce) | (CaCe)(Fe3+AlFe2+)O[Si2O7][SiO4](OH) |
| 4 photos of Håleniusite-(La) associated with Bastnäsite-(La) | La(CO3)F |
| 4 photos of Håleniusite-(La) associated with Törnebohmite-(Ce) | Ce2Al(SiO4)2(OH) |
| 3 photos of Håleniusite-(La) associated with Håleniusite-(Ce) | (Ce,La)OF |
| 2 photos of Håleniusite-(La) associated with Anthophyllite | ◻Mg2Mg5(Si8O22)(OH)2 |
| 1 photo of Håleniusite-(La) associated with Bastnäsite-(Ce) | Ce(CO3)F |
Related Minerals - Strunz-mindat Grouping
| 3.DE. | Håleniusite-(Ce) | (Ce,La)OF |
Fluorescence of Håleniusite-(La)
none
Other Information
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 Håleniusite-(La)
mindat.org URL:
https://www.mindat.org/min-25691.html
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External Links:
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References for Håleniusite-(La)
Reference List:
Holtstam, D., Grins, J., Nysten, P. (2004) Håleniusite-(La) from the Bastnäs deposit, Västmanland, Sweden: A new REE oxyfluoride mineral species. The Canadian Mineralogist, 42 (4) 1097-1103 doi:10.2113/gscanmin.42.4.1097
Localities for Håleniusite-(La)
Showing 4 localities.
symbol to view information about a locality.
The Locality List
- This locality has map coordinates listed.
- This locality has estimated coordinates.
ⓘ - 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).
All localities listed without proper references should be considered as questionable.
Russia | |
| Kovalev et al. (2023) |
Sweden | |
| Lindh (2012) |
| Holtstam et al. (2004) |
| Andersson et al. (2024) |
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Bastnäs Mines, Riddarhyttan, Skinnskatteberg, Västmanland County, Sweden