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Håleniusite-(La)

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Bastnäs mines, Riddarhyttan, Skinnskatteberg, Västmanland, Sweden
© L. Gustafsson

Show Håleniusite-(La) Photos (6)
Formula:
(La,Ce)OF
System:IsometricColour:lemon yellow to ochre ...
Name:Honouring Prof. Ulf Hålenius, Director of the mineralogy department at the Natural History Museum, Stockholm, Sweden.
Isostructural with:Fluorite
This page provides mineralogical data about Håleniusite-(La).

Classification of Håleniusite-(La)

IMA status:Approved 2003
Strunz 8th edition ID:3/A.08-25
Nickel-Strunz 10th (pending) edition ID:3.DE.05

3 : HALIDES
D : Oxyhalides, hydroxyhalides and related double halides
E : With Rare-Earth Elements
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Type Occurrence of Håleniusite-(La)

Type Locality:Bastnäs mines, Riddarhyttan, Skinnskatteberg, Västmanland, Sweden
General Appearance of Type Material:powdery masses
Year of Discovery:1986
Geological Setting of type material:in vugs and leaching zones of massive Ferriallanite-(Ce), intimately intergrown with Cerite-(Ce) and Bastnäsite-(La)
Associated Minerals at type locality:
QuartzMolybdeniteFerriallanite-(Ce)Cerite-(Ce)Brochantite
Bastnäsite-(La)Amphibole Group

Physical Properties of Håleniusite-(La)

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

Crystallography of Håleniusite-(La)

Crystal System:Isometric
Class (H-M):m3m (4/m 3 2/m) - Hexoctahedral
Space Group:Im3m {I4/m 3 2/m}
Cell Parameters:a = 5.628Å
Unit Cell Volume:V 178.26 ų (Calculated from Unit Cell)
X-Ray Powder Diffraction:
d-spacingIntensity
3.25 (100)
1.99 (60)

Chemical Properties of Håleniusite-(La)

Formula:
(La,Ce)OF
All elements listed in formula:Ce, F, La, O

Other Names for Håleniusite-(La)

Synonyms:
IMA2003-028
Other Languages:
Russian:Халениусит-(La)

Other Information

Fluorescence in UV light:none
Health Warning: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)

Reference List:D. Holtstam et al.: Can. Mineral. 42:1097-1103 (2004)

Internet Links for Håleniusite-(La)

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    Localities for Håleniusite-(La)

    (TL) indicates type locality. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
    Sweden
     
    • Västmanland
      • Skinnskatteberg
        • Riddarhyttan
    		GFF ,vol.126, 2004; Can Min (2004) 42 (4), 1097-1103
    Mineral and/or Locality
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