Wakefieldite-(La)
A valid IMA mineral species
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About Wakefieldite-(La)
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)
Unique Identifiers
Mindat ID:
35901
Long-form identifier:
mindat:1:1:35901:8
GUID
(UUID V4):
(UUID V4):
e0ff2073-7f34-417e-b57f-a9c624296b73
IMA Classification of Wakefieldite-(La)
Approved
IMA Formula:
LaVO4
Approval year:
2007
Classification of Wakefieldite-(La)
8.AD.35
8 : PHOSPHATES, ARSENATES, VANADATES
A : Phosphates, etc. without additional anions, without H2O
D : With only large cations
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
38 : ANHYDROUS NORMAL PHOSPHATES, ARSENATES, AND VANADATES
4 : AXO4
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 |
---|---|---|
Wf-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 Wakefieldite-(La)
Adamantine
Transparency:
Transparent, Translucent
Colour:
light pinkish to brown
Streak:
white
Hardness:
4 on Mohs scale
Hardness Data:
Measured
Tenacity:
Brittle
Cleavage:
None Observed
possible {100} inferred from X-ray study.
possible {100} inferred from X-ray study.
Fracture:
Irregular/Uneven
Density:
4.703 g/cm3 (Calculated)
Optical Data of Wakefieldite-(La)
Type:
Uniaxial (+)
Pleochroism:
Weak
Comments:
E = pale pink, O = pale pinkish yellow.
Comments:
ω and ε > 1.90
Chemistry of Wakefieldite-(La)
Mindat Formula:
La(VO4)
Elements listed:
Crystallography of Wakefieldite-(La)
Crystal System:
Tetragonal
Class (H-M):
4/mmm (4/m 2/m 2/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 Structure
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Data courtesy of the American Mineralogist Crystal Structure Database. Click on an AMCSD ID to view structure
ID | Species | Reference | Link | Year | Locality | Pressure (GPa) | Temp (K) |
---|---|---|---|---|---|---|---|
0007272 | Wakefieldite-(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 1135-1139 | 2008 | Glucksstern Mine, Friedrichroda, Thuringia, Germany | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder Diffraction
Powder Diffraction Data:
d-spacing | Intensity |
---|---|
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 Environment
Paragenetic Mode(s):
Paragenetic Mode | Earliest Age (Ga) |
---|---|
High-𝑇 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)
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:
Reference:
Witzke, T., U. Kolitsch, J.M. Warnsloh & J. Göske (2008): Wakefieldite-(La), a new mineral species from the Glücksstern Mine, Friedrichroda, Thuringia, Germany. European J. Mineralogy 20, 1135-1139.
Synonyms of Wakefieldite-(La)
Wakefieldite (in part)
Other Language Names for Wakefieldite-(La)
German:Wakefieldit-(La)
Simplified Chinese:钒镧石
Relationship of Wakefieldite-(La) to other Species
Member of:
Other Members of this group:
Chernovite-(Y) | Y(AsO4) | Tet. 4/mmm (4/m 2/m 2/m) : I41/amd |
Pretulite | Sc(PO4) | Tet. 4/mmm (4/m 2/m 2/m) : I41/amd |
Wakefieldite-(Ce) | Ce(VO4) | Tet. 4/mmm (4/m 2/m 2/m) : I41/amd |
Wakefieldite-(Nd) | Nd(VO4) | Tet. 4/mmm (4/m 2/m 2/m) : I41/amd |
Wakefieldite-(Y) | Y(VO4) | Tet. 4/mmm (4/m 2/m 2/m) : I41/amd |
Xenotime-(Gd) | Gd(PO4) | Tet. 4/mmm (4/m 2/m 2/m) : I41/amd |
Xenotime-(Y) | Y(PO4) | Tet. 4/mmm (4/m 2/m 2/m) : I41/amd |
Xenotime-(Yb) | Yb(PO4) | Tet. 4/mmm (4/m 2/m 2/m) : I41/amd |
Common Associates
Associated Minerals Based on Photo Data:
1 photo of Wakefieldite-(La) associated with Hausmannite | Mn2+Mn3+2O4 |
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 | REE(PO4) |
1 photo of Wakefieldite-(La) associated with Cerianite-(Ce) | (Ce4+,Th)O2 |
1 photo of Wakefieldite-(La) associated with Stevensite | (Ca,Na)xMg3-x(Si4O10)(OH)2 |
Related Minerals - Strunz-mindat Grouping
8.AD. | Keplerite | Ca9(Ca0.5◻0.5)Mg(PO4)7 |
8.AD. | Deynekoite | Ca9◻Fe3+(PO4)7 |
8.AD. | Mazorite | Ba3(PO4)2 |
8.AD. | Monazite-(Gd) | Gd(PO4) |
8.AD.05 | Nahpoite | Na2(PO3OH) |
8.AD.10 | Monetite | Ca(PO3OH) |
8.AD.10 | Weilite | Ca(HAsO4) |
8.AD.10 | Švenekite | Ca(H2AsO4)2 |
8.AD.15 | Archerite | (K,NH4)(H2PO4) |
8.AD.15 | Biphosphammite | NH4(H2PO4) |
8.AD.20 | Phosphammite | (NH4)2(PO3OH) |
8.AD.25 | Buchwaldite | NaCa(PO4) |
8.AD.30 | Schultenite | Pb(HAsO4) |
8.AD.35 | Chernovite-(Y) | Y(AsO4) |
8.AD.35 | Dreyerite | Bi(VO4) |
8.AD.35 | Wakefieldite-(Ce) | Ce(VO4) |
8.AD.35 | Wakefieldite-(Y) | Y(VO4) |
8.AD.35 | Xenotime-(Y) | Y(PO4) |
8.AD.35 | Chernovite-(Ce) | (Ce,Y)(AsO4) |
8.AD.35 | Pretulite | Sc(PO4) |
8.AD.35 | Xenotime-(Yb) | Yb(PO4) |
8.AD.35 | Wakefieldite-(Nd) | Nd(VO4) |
8.AD.35 | Xenotime-(Gd) | Gd(PO4) |
8.AD.40 | Pucherite | Bi(VO4) |
8.AD.45 | Ximengite | Bi(PO4) |
8.AD.50 | Gasparite-(Ce) | Ce(AsO4) |
8.AD.50 | Monazite-(Ce) | Ce(PO4) |
8.AD.50 | Monazite-(La) | La(PO4) |
8.AD.50 | Monazite-(Nd) | Nd(PO4) |
8.AD.50 | Rooseveltite | Bi(AsO4) |
8.AD.50 | Cheralite | CaTh(PO4)2 |
8.AD.50 | Monazite-(Sm) | Sm(PO4) |
8.AD.50 | UM2005-35-VO:CaFePSiTh | (Th,Ca)(VO4,SiO4,PO4) |
8.AD.50 | Gasparite-(La) | La(AsO4) |
8.AD.55 | Tetrarooseveltite | Bi(AsO4) |
8.AD.60 | Chursinite | [Hg2]2+Hg2+2[AsO4]2 |
8.AD.65 | Clinobisvanite | Bi(VO4) |
8.AD.70 | Gurimite | Ba3(VO4)2 |
8.AD.75 | Picaite | NaCa[AsO3OH][AsO2(OH)2] |
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 Wakefieldite-(La)
mindat.org URL:
https://www.mindat.org/min-35901.html
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References for Wakefieldite-(La)
Localities for Wakefieldite-(La)
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).
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.
All localities listed without proper references should be considered as questionable.
Germany | |
| Blass et al. (2010) |
| Witzke et al. (2008) |
Italy | |
| analysed by Dr. Anthony Kampf +1 other reference |
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Glücksstern Mine, Gottlob Hill, Friedrichroda, Gotha District, Thuringia, Germany