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Håleniusite-(La)

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About Håleniusite-(La)Hide

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:
This page provides mineralogical data about Håleniusite-(La).


Classification of Håleniusite-(La)Hide

Approved
Approval Year:
2003
First Published:
2004
3.DE.05

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

Physical Properties of Håleniusite-(La)Hide

Dull, Earthy
Colour:
lemon yellow to ochre yellow
Streak:
light yellow
Density:
6.5 g/cm3 (Measured)    

Chemical Properties of Håleniusite-(La)Hide

Formula:
(La,Ce)OF
IMA Formula:
LaOF

Crystallography of Håleniusite-(La)Hide

Crystal System:
Isometric
Class (H-M):
m3m (4/m 3 2/m) - Hexoctahedral
Space Group:
Im3m
Cell Parameters:
a = 5.628 Å
Unit Cell V:
178.26 ų (Calculated from Unit Cell)

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
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.
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:
Reference:
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 mindat.org.
Cerite-(Ce)7 photos of Håleniusite-(La) associated with Cerite-(Ce) on mindat.org.
Ferriallanite-(Ce)7 photos of Håleniusite-(La) associated with Ferriallanite-(Ce) on mindat.org.
Bastnäsite-(La)4 photos of Håleniusite-(La) associated with Bastnäsite-(La) on mindat.org.
Törnebohmite-(Ce)4 photos of Håleniusite-(La) associated with Törnebohmite-(Ce) on mindat.org.

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

ⓘ - 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.
Sweden
 
  • 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
Mineral and/or Locality  
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