Wakefieldite-(Y) Mineral Data

Wakefieldite-(Y) Mineral Data +

[Mineral Specimens] [Mineral Locations] [About Us] [Search] [Register]
Greenside Minerals
Newest website on the Internet for top quality, affordable minerals from around the World
We specialize in minerals from the UK and Ireland

General Wakefieldite-(Y) Information

Chemical Formula:

YVO4

Composition:

Molecular Weight = 203.84 gm

Yttrium 43.61 % Y 55.39 % Y₂O₃

Vanadium 24.99 % V 44.61 % V₂O₅

Oxygen 31.40 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

Y(VO₄)

IMA Status:

Approved IMA 1969

Locality:

Link to MinDat.org Location Data.

Synonym:

ICSD 78074

IMA1969-012

PDF 17-341

Search for Wakefieldite-(Y) Images

Images:

Image not yet available on Webmineral.com

Try searching images.google.com or Mindat Picture Gallary for mineral pictures. Caution: The images retrieved may not be appropriate.

Wakefieldite-(Y) Crystallography

Axial Ratios:

a:c = 1:0.88529

Cell Dimensions:

a = 7.105, c = 6.29, Z = 4; V = 317.53 Den(Calc)= 4.26

Crystal System:

Tetragonal - Ditetragonal DipyramidalH-M Symbol (4/m 2/m 2/m) Space Group: I 4₁/amd

$Help on X Ray Diffraction:$ X Ray Diffraction:

By Intensity(I/I_o): 3.56(1), 1.824(0.75), 2.66(0.5),

Crystal Structure:

Mouse
drag1 - LMB Manipulate Structure
drag2 - RMB Resize/Rotate
Keyboard
S - Stereo Pair on/off
H - Help Screen
I - Data Info
A - Atoms On/Off
P - Polyhedra On/Off
B - Bonds On/Off
Help on Above

Chakoumakos B C , Abraham M M , Boatner L A , Journal of Solid State Chemistry , 109 (1994) p.197-202, Crystal structure refinements of zircon-type, MVO4 (M = Sc, Y, Ce, Pr, Nd, Tb, Ho, Er, Tm, Yb, Lu), Locality: synthetic

Physical Properties of Wakefieldite-(Y)

Color:

Yellow, Light brown, Light yellow brown.

Density:

4.21

Hardness:

5 - Apatite

Streak:

white

Optical Properties of Wakefieldite-(Y)

Gladstone-Dale:

CI meas= -0.034 (Excellent) - where the CI = (1-KPDmeas/KC)
CI calc= -0.022 (Excellent) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2512,KPDmeas= 0.2542,KC= 0.2458

Optical Data:

Uniaxial (+), w=2, e=2.14, bire=0.1400.

Calculated Properties of Wakefieldite-(Y)

Electron Density:

r_electron=3.93 gm/cc
note: r_{Wakefieldite-(Y)}=4.26 gm/cc.

Fermion Index

Fermion Index = 0.00077
Boson Index = 0.99923

Photoelectric:

PE_{Wakefieldite-(Y)}= 60.46 barns/electron
U=PE_{Wakefieldite-(Y)} x r_electron= 237.54 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Wakefieldite-(Y) is Not Radioactive

Wakefieldite-(Y) Classification

Dana Class:

38.4.11.3 (38)Anhydrous Phosphates, etc

(38.4)A+ XO4

(38.4.11)Zenotime Group (Tetragonal: I41/amd)

38.4.11.1 Xenotime-(Y) YPO4 I 4₁/amd 4/m 2/m 2/m

38.4.11.2 Chernovite-(Y) YAsO4 I 4₁/amd 4/m 2/m 2/m

38.4.11.3 Wakefieldite-(Y) YVO4 I 4₁/amd 4/m 2/m 2/m

38.4.11.4 Wakefieldite-(Ce) (Ce,Pb,Pb)VO4 I 4₁/amd 4/m 2/m 2/m

38.4.11.5 Pretulite! ScPO4 I 4₁/amd 4/m 2/m 2/m

38.4.11.6 Xenotime-(Yb)! YbPO4 I 4₁/amd 4/m 2/m 2/m

Strunz Class:

VII/A.14-30 VII - Phosphates, Arsenates and Vanadates

VII/A - Waterfree phosphates [PO4]3- without unfamiliar anions, cations of very big size: Ca, Na and andre

VII/A.14 - Xenotime-(Y) - Wakefieldite-(Ce) series

VII/A.14-05 Pretulite! ScPO4 I 4₁/amd 4/m 2/m 2/m

VII/A.14-08 Xenotime-(Yb)! YbPO4 I 4₁/amd 4/m 2/m 2/m

VII/A.14-10 Xenotime-(Y) YPO4 I 4₁/amd 4/m 2/m 2/m

VII/A.14-20 Chernovite-(Y) YAsO4 I 4₁/amd 4/m 2/m 2/m

VII/A.14-25 Chernovite-(Ce)* (Ce,Y)(AsO4) I 4₁/amd 4/m 2/m 2/m

VII/A.14-30 Wakefieldite-(Y) YVO4 I 4₁/amd 4/m 2/m 2/m

VII/A.14-40 Wakefieldite-(Ce) (Ce,Pb,Pb)VO4 I 4₁/amd 4/m 2/m 2/m

Other Wakefieldite-(Y) Information

References:

PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)

See Also:

Links to other databases for Wakefieldite-(Y) :
1 -Am. Min. Crystal Structure Database 2 -Athena 3 - EUROmin Project 4 -Google Images 5 -Google Scholar 6 -Handbook of Mineralogy (UofA) 7 -MinDAT 8 -MinMax(Deutsch) 9 -MinMax(English) 10 -Mineralienatlas (Deutsch) 11 -QUT Mineral Atlas 12 - WWW-MINCRYST

Search for Wakefieldite-(Y) using:

[ALTAVISTA] [AOL] [About.com] [All-The-Web] [HotBot] [Ixquick] [LookSmart] [MAMMA] [MSN.COM] [Netscape] [Teoma] [Wikipedia] [YAHOO]

Visit our Advertisers for Wakefieldite-(Y) :
AA Mineral Specimens
B and L Minerals
Dan Weinrich Fine Minerals
Dan Weinrich Auctions
e-Rocks Auctions
Excalibur Minerals
Exceptional Minerals
Fabre Minerals
Greenside Minerals
John Betts Fine Minerals
Masons Minerals
Minernet.it
Mineral News
Mineral of the Month Club
MineralsWeb Fine Minerals
Rockshop.cz Kalat Fine Minerals
T G Fine Minerals
Wrights Rock Shop

Translate Wakefieldite-(Y) Mineral Data :

Ask about Wakefieldite-(Y) here :
Ask-A-Mineralogist from the Mineralogical Society of America
Mindat.org's Discussion Groups
Original Rockhounds Discussion Group
Rockhounds Discussion Group on Yahoo Groups
Mineral Discussion Forum from Fabre Minerals - also available in Español

Print or Cut-and-Paste your Wakefieldite-(Y) Specimen Label here :

Wakefieldite-(Y)

YVO4
Dana No: 38.4.11.3 Strunz No: VII/A.14-30
Locality:

Notes: