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Wakefieldite-(Y)

Big Photo

Evans-Lou Mine, St-Pierre-de-Wakefield, Portland Township, Papineau Co., Québec, Canada
© Leon Hupperichs

Formula:
YVO
 
4
Colour:Yellow-brown, light greenHardness:5


Zircon Group.

Classification of Wakefieldite-(Y)

IMA status:Approved
Strunz 8th edition ID:7/A.14-30
Nickel-Strunz 10th (pending) edition ID:8.AD.35

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

38 : ANHYDROUS NORMAL PHOSPHATES, ARSENATES, AND VANADATES
4 : AXO4
Hey's CIM Ref.:21.3.7

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

Type Locality:Evans-Lou Mine, St-Pierre-de-Wakefield, Portland Township, Papineau Co., Québec, Canada
General Appearance of Type Material:Fine grained yellow masses
Geological Setting of type material:Pegmatite

Physical Properties of Wakefieldite-(Y)

Colour:Yellow-brown, light green
Hardness (Mohs):5
Density (calculated):4.25 g/cm3

Optical Data of Wakefieldite-(Y)

Type:Uniaxial (+)
RI values: nω = 2.000 nε = 2.140
Maximum Birefringence:δ = 0.140

Chart 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)

Formula:
YVO
 
4
Essential elements:O, V, Y
All elements listed in formula:O, V, Y

Relationship of Wakefieldite-(Y) to other Species

Related Minerals - Nickel-Strunz Grouping):
8.AD.05Nahpoite
Na
 
2
HPO
 
4
8.AD.10Monetite
CaHPO
 
4
8.AD.10Weilite
CaHAsO
 
4
8.AD.10Švenekite
Ca(H
 
2
AsO
 
4
)
 
2
8.AD.15Archerite
(K,NH
 
4
)[H
 
2
PO
 
4
]
8.AD.15Biphosphammite
(NH
 
4
,K)H
 
2
PO
 
4
8.AD.20Phosphammite
(NH
 
4
)
 
2
HPO
 
4
8.AD.25Buchwaldite
NaCaPO
 
4
8.AD.30Schultenite
PbHAsO
 
4
8.AD.35Chernovite-(Y)
YAsO
 
4
8.AD.35Clinobisvanite
BiVO
 
4
8.AD.35Dreyerite
BiVO
 
4
8.AD.35Wakefieldite-(Ce)
(Ce,Pb)VO
 
4
8.AD.35Xenotime-(Y)
YPO
 
4
8.AD.35Pretulite
ScPO
 
4
8.AD.35Xenotime-(Yb)
YbPO
 
4
8.AD.40Pucherite
BiVO
 
4
8.AD.45Ximengite
BiPO
 
4
8.AD.50Gasparite-(Ce)
(Ce,REE)AsO
 
4
8.AD.50Monazite-(Ce)
(Ce,La,Nd,Th)PO
 
4
8.AD.50Monazite-(La)
(La,Ce,Nd)PO
 
4
8.AD.50Monazite-(Nd)
(Nd,La,Ce)PO
 
4
8.AD.50Rooseveltite
BiAsO
 
4
8.AD.50Cheralite
CaTh[PO
 
4
]
 
2
8.AD.50Monazite-(Sm)
(Sm,Gd,Ce,Th)(PO
 
4
)
8.AD.55Tetrarooseveltite
Bi(AsO
 
4
)
8.AD.60Chursinite
(Hg-Hg)
 
0.5
Hg
2+
 
[AsO
 
4
]
Related Minerals - Hey's Index Grouping:
21.3.1Steigerite
AlVO
 
4
·3H
 
2
O
21.3.2Alvanite
(Zn,Ni)Al
 
4
[(OH)
 
12
|V
 
2
O
 
6
] · 2H
 
2
O
21.3.3Metaschoderite
Al
 
2
PO
 
4
VO
 
4
·6H
 
2
O
21.3.4Schoderite
Al
 
2
PO
 
4
VO
 
4
·8H
 
2
O
21.3.5Satpaevite
Al
 
12
V
 
2
V
 
6
O
 
37
·30H
 
2
O
21.3.6Vanalite
NaAl
 
8
V
 
10
O
 
38
·30H
 
2
O
21.3.7Wakefieldite-(Ce)
(Ce,Pb)VO
 
4
21.3.8Chervetite
Pb
 
2
[V
 
2
O
 
7
]
21.3.9Mottramite
Pb(Cu,Zn)[OH|VO
 
4
]
21.3.10Descloizite
Pb(Zn,Cu)[OH|VO
 
4
]
21.3.11Clinobisvanite
BiVO
 
4
21.3.11Dreyerite
BiVO
 
4
21.3.11Pucherite
BiVO
 
4
21.3.12Schumacherite
Bi
 
3
[O|OH|(VO
 
4
)
 
2
]
21.3.13Namibite
Cu(BiO)
 
2
(VO
 
4
)(OH)
21.3.14Pottsite
HPbBi(VO
 
4
)
 
2
·2H
 
2
O
21.3.15Duhamelite
(Pb,Bi,Ca)Cu[(OH,O)|VO
 
4
]

Other Names for Wakefieldite-(Y)

Synonyms:
IMA1969-012
German names:
Wakefieldit-(Y)
Russian names:
Уэкфилдит-(Y)

Other Information

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 Wakefieldite-(Y)

Reference List:Annual Meeting of the Geological and Mineralogical Association of Canada, Abstract (1969): 20.

American Mineralogist (1970): 55: 1446.

American Mineralogist (1971): 56: 395-410.

Internet Links for Wakefieldite-(Y)

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    Localities for Wakefieldite-(Y)

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    (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.
    Canada
     
    • Québec
      • Papineau Co.
        • Portland Township
          • St-Pierre-de-Wakefield
    		Nickel & Nichols (1991) Mineral Reference Manual
    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.
    		Minerals of New Mexico 3rd ed.
    Northrop, Minerals of New Mexico, 3rd Rev. Ed., 1996
    Mineral and/or Locality
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