Wakefieldite-(Y) Mineral Data

[Mineral Auctions] [Register] [Current Auctions] [Log In] [www.danweinrich.com]
Dan Weinrich Auctions
Specializing In Live Weekly Auctions Of Top Quality Mineral Specimens
The Place To Find Great Specimens At Great Prices!

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)

Environment:

Secondary mineral filling cavities in a pegmatite.

IMA Status:

Approved IMA 1969

Locality:

Evans Lou mine, St. Pierre near Wakefield, Portland Twp., Papineau, QUE, Canada. Link to MinDat.org Location Data.

Name Origin:

Named for the locality.

Name Pronunciation:

Wakefieldite-(Y) + Pronunciation

Synonym:

ICSD 78074

IMA1969-012

PDF 17-341

Wakefieldite-(Y) Image

Images:

Wakefieldite-(Y)

Comments: Black rectangular prisms of wakefieldite-(Y) on matrix.
Location: Yellow Lake, British Columbia, Canada. Scale: See Image.
© Rruff Database

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
Ncalc = 2.03 - 2.05

Optical Data:

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

Calculated Properties of Wakefieldite-(Y)

Electron Density:

Bulk Density (Electron Density)=3.93 gm/cc
note: Specific Gravity of Wakefieldite-(Y) =4.26 gm/cc.

Fermion Index:

Fermion Index = 0.0007754551
Boson Index = 0.9992245449

Photoelectric:

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

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Wakefieldite-(Y) is Not Radioactive

Wakefieldite-(Y) Classification

Dana Class:

38.04.11.03 (38)Anhydrous Phosphates, etc

(38.04)A+ XO4

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

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

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

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

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

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

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

38.04.11.07 Wakefieldite-(La)! LaVO4 I 4₁/amd 4mm

38.04.11.08 Wakefieldite-(Nd)! NdVO4 I 4₁/amd 4mm

Strunz Class:

08.AD.35 08 - PHOSPHATES, ARSENATES, VANADATES

08.A - Phosphates, etc. without additional anions, without H2O

08.AD -With only large cations

08.AD.35 Dreyerite BiVO4 I 4₁/amd 4/m 2/m 2/m

08.AD.35 Chernovite-(Y) YAsO4 I 4₁/amd 4/m 2/m 2/m

08.AD.35 Pretulite! ScPO4 I 4₁/amd 4/m 2/m 2/m

08.AD.35 Xenotime-(Y) YPO4 I 4₁/amd 4/m 2/m 2/m

08.AD.35 Wakefieldite-(Ce) (Ce,Pb,Pb)VO4 I 4₁/amd 4/m 2/m 2/m

08.AD.35 Wakefieldite-(Y) YVO4 I 4₁/amd 4/m 2/m 2/m

08.AD.35 Xenotime-(Yb)! YbPO4 I 4₁/amd 4/m 2/m 2/m

08.AD.35 Wakefieldite-(La)! LaVO4 I 4₁/amd 4mm

08.AD.35 Wakefieldite-(Nd)! NdVO4 I 4₁/amd 4mm

Other Wakefieldite-(Y) Information

References:

NAME( Dana8) 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 - Ruff.Info
13 - WWW-MINCRYST

Search for Wakefieldite-(Y) using:

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

Visit our Advertisers for Wakefieldite-(Y) :

AA Mineral Specimens

B & L Fine Minerals

Crystalarium.com

Dan Weinrich Fine Minerals

Dan Weinrich Auctions

Dakota Matrix

Desert Winds Gems and Minerals

John Betts Fine Minerals

Mason's Minerals

Mineral News

Mineral of the Month Club

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: 38.04.11.03 Strunz No: 08.AD.35
Locality:

Notes: