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Wakefieldite-(Y)

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Formula:
Y(VO4)
Colour:
Pale tan, yellow, canary yellow, yellow-brown,
Hardness:
5
Specific Gravity:
4.25 (Calculated)
Crystal System:
Tetragonal
Member of:
Name:
Named for the town of Wakefield near the type locality, the Evans-Lou pegmatite.
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Classification of Wakefieldite-(Y)Hide

Approved
Approval Year:
1969
8.AD.35

8 : PHOSPHATES, ARSENATES, VANADATES
A : Phosphates, etc. without additional anions, without H2O
D : With only large cations
38.4.11.3

38 : ANHYDROUS NORMAL PHOSPHATES, ARSENATES, AND VANADATES
4 : AXO4
21.3.7

21 : Vanadates (and vanadates with arsenate or phosphate)
3 : Vanadates of Al, rare earths, Pb, V or Bi

Physical Properties of Wakefieldite-(Y)Hide

Colour:
Pale tan, yellow, canary yellow, yellow-brown,
Hardness:
Comment:
Approximately equal to that of apatite.
Density:
4.25 g/cm3 (Calculated)

Optical Data of Wakefieldite-(Y)Hide

Type:
Uniaxial (+)
RI values:
nω = 2.000 nε = 2.140
Max Birefringence:
δ = 0.140
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Very High

Chemical Properties of Wakefieldite-(Y)Hide

Formula:
Y(VO4)
IMA Formula:
YVO4

Crystallography of Wakefieldite-(Y)Hide

Crystal System:
Tetragonal
Class (H-M):
4/mmm (4/m 2/m 2/m) - Ditetragonal Dipyramidal
Space Group:
I41/amd
Cell Parameters:
a = 7.105(3) Å, c = 6.20(1) Å
Ratio:
a:c = 1 : 0.873
Unit Cell V:
312.98 ų (Calculated from Unit Cell)
Z:
4

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
4.74 (17)
3.56 (100)
2.66 (50)
2.51 (30)
2.21 (25)
1.824 (75)
1.774 (20)

Type Occurrence of Wakefieldite-(Y)Hide

General Appearance of Type Material:
A pale tan pulverulent masses filling cavities in quartz.
Geological Setting of Type Material:
A zoned granite pegmatite
Associated Minerals at Type Locality:

Synonyms of Wakefieldite-(Y)Hide

Other Language Names for Wakefieldite-(Y)Hide

Relationship of Wakefieldite-(Y) to other SpeciesHide

Member of:
Other Members of this group:
Chernovite-(Y)Y(AsO4)Tet. 4/mmm (4/m 2/m 2/m) : I41/amd
PretuliteSc(PO4)Tet.
Wakefieldite-(Ce)Ce(VO4)Tet. 4/mmm (4/m 2/m 2/m) : I41/amd
Wakefieldite-(La)La(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
Xenotime-(Y)Y(PO4)Tet. 4/mmm (4/m 2/m 2/m) : I41/amd
Xenotime-(Yb)Yb(PO4)Tet.

Common AssociatesHide

Hellandite-(Y)(Ca,REE)4Y2Al◻2(B4Si4O22) (OH)2
Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
QuartzSiO2

Related Minerals - Nickel-Strunz GroupingHide

8.AD.05NahpoiteNa2HPO4Mon. 2/m : P21/m
8.AD.10MonetiteCa(HPO4)Tric. 1
8.AD.10WeiliteCa(HAsO4)Tric. 1 : P1
8.AD.10ŠvenekiteCa(H2AsO4)2Tric. 1 : P1
8.AD.15Archerite(K,NH4)(H2PO4)Tet. 4 2m : I4 2d
8.AD.15Biphosphammite(NH4,K)(H2PO4)Tet. 4 2 2 : I41 2 2
8.AD.20Phosphammite(NH4)2(HPO4)Mon. 2/m : P21/b
8.AD.25BuchwalditeNaCa(PO4)Orth. mm2 : Pmn21
8.AD.30SchultenitePb(HAsO4)Mon. 2/m : P2/b
8.AD.35Chernovite-(Y)Y(AsO4)Tet. 4/mmm (4/m 2/m 2/m) : I41/amd
8.AD.35DreyeriteBi(VO4)Tet. 4/mmm (4/m 2/m 2/m) : I41/amd
8.AD.35Wakefieldite-(Ce)Ce(VO4)Tet. 4/mmm (4/m 2/m 2/m) : I41/amd
8.AD.35Xenotime-(Y)Y(PO4)Tet. 4/mmm (4/m 2/m 2/m) : I41/amd
8.AD.35PretuliteSc(PO4)Tet.
8.AD.35Xenotime-(Yb)Yb(PO4)Tet.
8.AD.35Wakefieldite-(La)La(VO4)Tet. 4/mmm (4/m 2/m 2/m) : I41/amd
8.AD.40PucheriteBi(VO4)Orth. mmm (2/m 2/m 2/m)
8.AD.45XimengiteBi(PO4)Trig.
8.AD.50Gasparite-(Ce)Ce(AsO4)
8.AD.50Monazite-(Ce)Ce(PO4)Mon. 2/m : P21/b
8.AD.50Monazite-(La)La(PO4)
8.AD.50Monazite-(Nd)Nd(PO4)
8.AD.50RooseveltiteBi(AsO4)Mon. 2/m
8.AD.50CheraliteCaTh(PO4)2Mon. 2/m
8.AD.50Monazite-(Sm)Sm(PO4)Mon. 2/m : P21/m
8.AD.50UM2005-35-VO:CaFePSiTh(Th,Ca)(VO4,SiO4,PO4)
8.AD.55TetrarooseveltiteBi(AsO4)Tet.
8.AD.60Chursinite(Hg+2)0.5Hg2+(AsO4)Mon. 2/m : P21/b
8.AD.65ClinobisvaniteBi(VO4)Mon. 2/m

Related Minerals - Dana Grouping (8th Ed.)Hide

38.4.11.2Chernovite-(Y)Y(AsO4)Tet. 4/mmm (4/m 2/m 2/m) : I41/amd
38.4.11.4Wakefieldite-(Ce)Ce(VO4)Tet. 4/mmm (4/m 2/m 2/m) : I41/amd

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

21.3.1SteigeriteAl(VO4) · 3H2OMon. 2/m : P21/m
21.3.2Alvanite(Zn,Ni)Al4(V5+O3)2(OH)12 · 2H2OMon. 2/m : P21/m
21.3.3MetaschoderiteAl2(PO4)(VO4) · 6H2OMon. 2/m : P2/m
21.3.4SchoderiteAl2(PO4)(VO4) · 8H2OMon.
21.3.5SatpaeviteAl12V4+2V5+6O37 · 30H2O
21.3.6VanaliteNaAl8V10O38 · 30H2OMon.
21.3.7Wakefieldite-(Ce)Ce(VO4)Tet. 4/mmm (4/m 2/m 2/m) : I41/amd
21.3.8ChervetitePb2(V2O7)Mon.
21.3.9MottramitePbCu(VO4)(OH)Orth. mmm (2/m 2/m 2/m) : Pnma
21.3.10DescloizitePbZn(VO4)(OH)Orth. mmm (2/m 2/m 2/m) : Pnma
21.3.11ClinobisvaniteBi(VO4)Mon. 2/m
21.3.11DreyeriteBi(VO4)Tet. 4/mmm (4/m 2/m 2/m) : I41/amd
21.3.11PucheriteBi(VO4)Orth. mmm (2/m 2/m 2/m)
21.3.12SchumacheriteBi3(VO4)2O(OH)Tric.
21.3.13NamibiteCu(BiO)2(VO4)(OH)Tric. 1 : P1
21.3.14Pottsite(Pb3xBi4-2x)(VO4)4·H2O (0.8 < x < 1.0)Tet. 4/m : I41/a
21.3.15Duhamelite(Pb,Bi,Ca)Cu(VO4)(OH,O)Orth.

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 Wakefieldite-(Y)Hide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
HOGARTH, D.D. & MILES, N.M. (1969): Wakefieldite, natural YVO4. Canadian Mineralogist 10, 136 (abstr.). Abstracted in: American Mineralogist (1970): 55: 1446.
MILES, N.M., HOGARTH, D.D. & RUSSEL, D.S. (1971): Wakefieldite, yttrium vanadate, a new mineral from Quebec. American Mineralogist 56, 395-410.
HOGARTH, D.D. (1972): The Evans-Lou pegmatite, Quebec: a unique yttrium B niobium B bismuth B vanadium mineral assemblage. Mineralogical Record 3, 69-77.
Cadoni, M., Ciriotti, M.E., Ferraris, G. (2011): Wakefieldite-(Y) from Montaldo di Mondovì (Italy): new data and crystal structure. Rendiconti Scienze Fisiche e Naturali Accademia Lincei, 22, 307–314.

Internet Links for Wakefieldite-(Y)Hide

Localities for Wakefieldite-(Y)Hide

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

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - 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.
Canada (TL)
 
  • Québec
    • Outaouais
      • Les Collines-de-l'Outaouais RCM
        • Val-des-Monts
          • Lac Saint-Pierre (Wakefield Lake)
Miles, N. M., Hogarth, D.D. & Russell, D.S. (1971): Wakefieldite, yttrium vanadate, a new mineral from Quebec. American Mineralogist. 56, 395-410
Italy
 
  • Piedmont
    • Cuneo Province
      • Corsaglia Valley
        • Montaldo di Mondovì
          • Borgata Oberti
Cadoni, M., Ciriotti, M.E., Ferraris, G. (2011): Wakefieldite-(Y) from Montaldo di Mondovì (Italy): new data and crystal structure. Rendiconti Scienze Fisiche e Naturali Accademia Lincei, 22, 307–314.
USA
 
  • Arizona
    • Maricopa Co.
Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 417.
  • Michigan
    • Baraga Co.
      • Huron River
Rocks & Minerals 82:298-308
  • New Mexico
    • Sierra Co.
      • Paramount Canyon
Minerals of New Mexico 3rd ed.
Northrop, Minerals of New Mexico, 3rd Rev. Ed., 1996
Mineral and/or Locality  
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