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⇱ Wakefieldite-(La): Mineral information, data and localities.

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Wakefieldite-(La)

A valid IMA mineral species
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About Wakefieldite-(La)Hide

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Formula:
La(VO4)
Colour:
light pinkish to brown
Lustre:
Adamantine
Hardness:
4
Specific Gravity:
4.703 (Calculated)
Crystal System:
Tetragonal
Member of:
Name:
Lanthanum-dominant analogue of wakefieldite-(Ce), wakefieldite-(Y) and wakefieldite-(Nd). The original wakefieldite (renamed to wakefieldite-(Y) in 1987) was named for the lake (originally called Lake Wakefield, now called Lac Saint-Pierre) near its type locality, the Evans-Lou mine.

Unique IdentifiersHide

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Mindat ID:
35901
Long-form identifier:
mindat:1:1:35901:8

Similar NamesHide

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Wakefieldite
Wakefieldite-(Ce)A valid IMA mineral speciesCe(VO4)
Wakefieldite-(Nd)A valid IMA mineral speciesNd(VO4)
Wakefieldite-(Y)A valid IMA mineral speciesY(VO4)

IMA Classification of Wakefieldite-(La)Hide

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Approved
IMA Formula:
LaVO4
Approval year:
2007

Classification of Wakefieldite-(La)Hide

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8.AD.35

8 : PHOSPHATES, ARSENATES, VANADATES
A : Phosphates, etc. without additional anions, without H2O
D : With only large cations
38.4.9.6

38 : ANHYDROUS NORMAL PHOSPHATES, ARSENATES, AND VANADATES
4 : AXO4

Mineral SymbolsHide

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As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.

SymbolSourceReference for Standard
Wf-LaIMA–CNMNCWarr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43

Physical Properties of Wakefieldite-(La)Hide

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Adamantine
Transparency:
Transparent, Translucent
Colour:
Light pinkish to brown
Streak:
White
Hardness:
Hardness Data:
Measured
Tenacity:
Brittle
Cleavage:
None Observed
possible {100} inferred from X-ray study.
Fracture:
Irregular/Uneven
Density:
4.703 g/cm3 (Calculated)

Optical Data of Wakefieldite-(La)Hide

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Type:
Uniaxial (+)
Pleochroism:
Weak
Comments:
E = pale pink, O = pale pinkish yellow.
Comments:
ω and ε > 1.90

Chemistry of Wakefieldite-(La)Hide

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Mindat Formula:
La(VO4)
Element Weights:
Element% weight
La54.721 %
O25.211 %
V20.068 %

Calculated from ideal end-member formula.

Crystallography of Wakefieldite-(La)Hide

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Crystal System:
Tetragonal
Class (H-M):
4/mmm(4/m2/m2/m) - Ditetragonal Dipyramidal
Space Group:
I41/amd
Setting:
I41/amd
Cell Parameters:
a = 7.406(4) Å, c = 6.504(8) Å
Ratio:
a:c = 1 : 0.878
Unit Cell V:
356.8 ų
Z:
4

Crystal StructureHide

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Data courtesy of the American Mineralogist Crystal Structure Database. Click on an AMCSD ID to view structure
IDSpeciesReferenceLinkYearLocalityPressure (GPa)Temp (K)
0007272Wakefieldite-(La)Witzke T, Kolitsch U, Warnsloh J M, Goske J (2008) Wakefieldite-(La), LaVO4, a new mineral species from the Glucksstern Mine, Friedrichroda, Thuringia, Germany European Journal of Mineralogy 20 1135-11392008Glucksstern Mine, Friedrichroda, Thuringia, Germany0293
CIF Raw Data - click here to close

X-Ray Powder DiffractionHide

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Powder Diffraction Data:
d-spacingIntensity
3.707 Å(100)
1.853 Å(19)
2.759 Å(10)
2.623 Å(7)
2.939 Å(5)
2.309 Å(5)
2.088 Å(5)

Geological EnvironmentHide

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Paragenetic Mode(s):
Paragenetic ModeEarliest Age (Ga)
High-? alteration and/or metamorphism
31 : Thermally altered carbonate, phosphate, and iron formations
Stage 4b: Highly evolved igneous rocks>3.0
34 : Complex granite pegmatites

Type Occurrence of Wakefieldite-(La)Hide

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General Appearance of Type Material:
prismatic crystals up to 0.5mm in length
Place of Conservation of Type Material:
Mineralogical Collection, Bergakademie, Freiberg, Germany, 81876.
Geological Setting of Type Material:
low temperature mineral in a hydrothermal barite vein
Associated Minerals at Type Locality:

Synonyms of Wakefieldite-(La)Hide

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Other Language Names for Wakefieldite-(La)Hide

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Simplified Chinese:钒镧石

Relationship of Wakefieldite-(La) to other SpeciesHide

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Member of:
Other Members of Xenotime Group:
Anningite-(Ce)(Ca0.5Ce4+0.5)(VO4)Tet. 4/mmm(4/m2/m2/m) : I41/amd
Chernovite-(Y)Y(AsO4)Tet. 4/mmm(4/m2/m2/m) : I41/amd
PretuliteSc(PO4)Tet. 4/mmm(4/m2/m2/m) : I41/amd
Wakefieldite-(Ce)Ce(VO4)Tet. 4/mmm(4/m2/m2/m) : I41/amd
Wakefieldite-(Nd)Nd(VO4)Tet. 4/mmm(4/m2/m2/m) : I41/amd
Wakefieldite-(Y)Y(VO4)Tet. 4/mmm(4/m2/m2/m) : I41/amd
Xenotime-(Gd)Gd(PO4)Tet. 4/mmm(4/m2/m2/m) : I41/amd
Xenotime-(Y)Y(PO4)Tet. 4/mmm(4/m2/m2/m) : I41/amd
Xenotime-(Yb)Yb(PO4)Tet. 4/mmm(4/m2/m2/m) : I41/amd

Common AssociatesHide

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Associations Based on Photo Data:
1 photo of Wakefieldite-(La) associated with Stevensite(Ca,Na)xMg3-x(Si4O10)(OH)2
1 photo of Wakefieldite-(La) associated with 'Calciobetafite (of Mazzi & Munno)'(Ca,Na)2(Nb,Ti)2(O,OH)7
1 photo of Wakefieldite-(La) associated with Monazite GroupREE(PO4)
1 photo of Wakefieldite-(La) associated with Cerianite-(Ce)(Ce4+,Th)O2
1 photo of Wakefieldite-(La) associated with HausmanniteMn2+Mn3+2O4

Related Minerals - Strunz-mindat GroupingHide

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8.AD.'Unnamed (Monoclinic polymorph of ximengite)'Bi(PO4)Mon. 2/m : P21/m
8.AD.KepleriteCa9(Ca0.5◻0.5)Mg(PO4)7Trig. 3m : R3c
8.AD.MazoriteBa3(PO4)2Trig. 3m(32/m) : R3m
8.AD.DeynekoiteCa9◻Fe3+(PO4)7Trig. 3m : R3c
8.AD.Monazite-(Gd)Gd(PO4)Mon.
8.AD.05NahpoiteNa2(PO3OH)Mon. 2/m : P21/m
8.AD.10WeiliteCa(HAsO4)Tric. 1 : P1
8.AD.10ŠvenekiteCa(H2AsO4)2Tric. 1 : P1
8.AD.10MonetiteCa(PO3OH)Tric. 1
8.AD.15Archerite(K,NH4)(H2PO4)Tet. 42m : I42d
8.AD.15BiphosphammiteNH4(H2PO4)Tet. 422 : I4122
8.AD.20Phosphammite(NH4)2(PO3OH)Mon. 2/m : P21/b
8.AD.25BuchwalditeNaCa(PO4)Orth. mm2 : Pmn21
8.AD.30SchultenitePb(HAsO4)Mon. 2/m : P2/b
8.AD.35DreyeriteBi(VO4)Tet. 4/mmm(4/m2/m2/m) : I41/amd
8.AD.35Anningite-(Ce)(Ca0.5Ce4+0.5)(VO4)Tet. 4/mmm(4/m2/m2/m) : I41/amd
8.AD.35PretuliteSc(PO4)Tet. 4/mmm(4/m2/m2/m) : I41/amd
8.AD.35Wakefieldite-(Ce)Ce(VO4)Tet. 4/mmm(4/m2/m2/m) : I41/amd
8.AD.35Wakefieldite-(Y)Y(VO4)Tet. 4/mmm(4/m2/m2/m) : I41/amd
8.AD.35Xenotime-(Yb)Yb(PO4)Tet. 4/mmm(4/m2/m2/m) : I41/amd
8.AD.35'Chernovite-(Ce)'(Ce,Y)(AsO4)Tet.
8.AD.35Xenotime-(Gd)Gd(PO4)Tet. 4/mmm(4/m2/m2/m) : I41/amd
8.AD.35Chernovite-(Y)Y(AsO4)Tet. 4/mmm(4/m2/m2/m) : I41/amd
8.AD.35Xenotime-(Y)Y(PO4)Tet. 4/mmm(4/m2/m2/m) : I41/amd
8.AD.35Wakefieldite-(Nd)Nd(VO4)Tet. 4/mmm(4/m2/m2/m) : I41/amd
8.AD.40PucheriteBi(VO4)Orth. mmm(2/m2/m2/m)
8.AD.45XimengiteBi(PO4)Trig. 32 : P3121
8.AD.50'UM2005-35-VO:CaFePSiTh'(Th,Ca)(VO4,SiO4,PO4)
8.AD.50RooseveltiteBi(AsO4)Mon. 2/m
8.AD.50Gasparite-(Ce)Ce(AsO4)Mon. 2/m
8.AD.50Monazite-(Sm)Sm(PO4)Mon. 2/m
8.AD.50Monazite-(Ce)Ce(PO4)Mon. 2/m
8.AD.50Monazite-(La)La(PO4)Mon. 2/m
8.AD.50Monazite-(Nd)Nd(PO4)Mon. 2/m
8.AD.50Gasparite-(La)La(AsO4)Mon. 2/m
8.AD.50CheraliteCaTh(PO4)2Mon. 2/m
8.AD.55TetrarooseveltiteBi(AsO4)Tet. 4/m : I41/a
8.AD.60Chursinite[Hg2]2+Hg2+2[AsO4]2Mon. 2/m : P21/b
8.AD.65ClinobisvaniteBi(VO4)Mon. 2/m
8.AD.70GurimiteBa3(VO4)2Trig. 3m : R3m
8.AD.75PicaiteNaCa[AsO3OH][AsO2(OH)2]Mon. 2/m : P21/b

Other InformationHide

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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 Wakefieldite-(La)Hide

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mindat.org URL:
https://www.mindat.org/min-35901.html
Please feel free to link to this page.

References for Wakefieldite-(La)Hide

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Localities for Wakefieldite-(La)Hide

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Showing 3 localities.

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

Locality ListHide

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👁 Image
- This locality has map coordinates listed. 👁 Image
- This locality has estimated coordinates. ⓘ - Click for references and further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. 👁 Image
- Good crystals or important locality for species. 👁 Image
- 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 (e.g. from pseudomorphs).

All localities listed without proper references should be considered as questionable.
Germany
  • Rhineland-Palatinate
    • Mayen-Koblenz
      • Vordereifel
        • Ettringen
Blass et al. (2010)
  • Thuringia
    • Gotha District
      • Friedrichroda
        • Gottlob Hill
Witzke et al. (2008)
Italy
  • Liguria
    • La Spezia Province
      • Borghetto di Vara
analysed by Dr. Anthony Kampf +1 other reference
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