Wakefieldite-(Nd) Mineral Data

[How the Club Works] [Memberships - Junior, Deluxe , and Platinum] [FAQ] [Past Minerals]
Join the Club - Junior, Deluxe and Platinum Memberships Available
High Quality Minerals Sent to Your Home or School Each Month
Mineral of the Month Club - An Inexpensive Way to Enjoy Minerals

General Wakefieldite-(Nd) Information

Chemical Formula:

NdVO4

Composition:

Molecular Weight = 259.18 gm

Vanadium 19.65 % V 35.09 % V₂O₅

Neodymium 55.65 % Nd 64.91 % Nd₂O₃

Oxygen 24.69 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

Nd(VO₄)

Environment:

Xenotime group

IMA Status:

Proposed IMA 2008 (Dana # Added)

Locality:

Arase mine, Kochi Prefecture, Shikoku, southwest Japan Link to MinDat.org Location Data.

Name Origin:

Commission on New Minerals, Nomenclature and Classification (CNMNC)

Name Pronunciation:

Wakefieldite-(Nd) + Pronunciation

Synonym:

ICSD 16299

IMA2008-031

PDF 15-769

Wakefieldite-(Nd) Image

Images:

Wakefieldite-(Nd)

Comments: Thin section image of wakefieldite-(Nd) in orange caryopilite with hematite and rhodochrosite.
Location: Ferruginous manganese ore from the Arise deposit, Kochi Prefecture, Japan. Scale: See Image.
© Advanced Industrial Science and Technology

Wakefieldite-(Nd) Crystallography

Axial Ratios:

a:c = 1:0.88702

Cell Dimensions:

a = 7.338, c = 6.509, Z = 4; V = 350.49 Den(Calc)= 4.91

Crystal System:

Tetragonal - Ditetragonal PyramidalH-M Symbol (4mm) Space Group: I 4₁/amd

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

By Intensity(I/I_o): 3.67(1), 2.74(0.51), 4.84(0.27),1.886(0.25), 2.09(0.14), 2.6(0.11), 2.29(0.09), 2.92(0.07),

Optical Properties of Wakefieldite-(Nd)

Optical Data:

NCalc= 2.02 - from Gladstone-Dale relationship (KC = 0.2082) where Ncalc=Dcalc*KC+1

Calculated Properties of Wakefieldite-(Nd)

Electron Density:

Bulk Density (Electron Density)=4.36 gm/cc
note: Specific Gravity of Wakefieldite-(Nd) =4.91 gm/cc.

Fermion Index:

Fermion Index = 0.11
Boson Index = 0.89

Photoelectric:

PE_{Wakefieldite-(Nd)}= 332.77 barns/electron
U=PE_{Wakefieldite-(Nd)} x r_electron=1,449.95 barns/cc.

Radioactivity:

GRapi = 52,679.58 (Gamma Ray American Petroleum Institute Units)
Concentration of Wakefieldite-(Nd) per GRapi unit = 18.98 (PPM)

Wakefieldite-(Nd) is Radioactive as defined in 49 CFR 173.403. Greater than 70 Bq / gram.

Estimated Maximum U.S. Postal Shipping Size (10 mRem/hr limit, Unshielded 10 cm box) 577.39 ±144.35 grams of pure Wakefieldite-(Nd) .

**Estimated Radioactivity from Wakefieldite-(Nd)** - weak
Specimen Size Weight/Volume (Sphere) *	Calculated Activity Bequerols (Bq)	Calculated Activity Curies (Ci)	Estimated Activity GR(api)	Estimated Exposure (mRem**)/hr If Held in Hand For One Hour
1000 gm / 7.30 cm	1,246,619	3.37E-05	52,679.58	17.32
100 gm / 3.39 cm	124,662	3.37E-06	5,267.96	1.73
10 gm / 1.57 cm	12,466	3.37E-07	526.80	0.17
1 gm / 7.30 mm	1,247	3.37E-08	52.68	0.02
0.1 gm / 3.39 mm	125	3.37E-09	5.27	0.00
0.01 gm / 1.57 mm	12	3.37E-10	0.53	0.00
0.001 gm / 0.73 mm	1	3.37E-11	0.05	0.00

Weight of pure Wakefieldite-(Nd) in grams (gm) and Calculated Diameter of a Sphere with a Density of 4.91 gm/cc.*
Goverment Estimate of Average Annual Exposure ( 360 mRem) **
Note: 10 microsieverts/hr = 1 mRem/hr **
Max Permissable Adult Dose 50,000 mRem/yr (hands), 15,000 mRem/yr (eyes)
Lethal Dose LD(50) Exposure 400,000 to 500,000 mRem
Estimated Thorium Activity ( 2.78 % Th) From Sum REE Elements (55.65 % REE)

Wakefieldite-(Nd) Classification

Dana Class:

38.04.11.08 (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-(Nd) Information

See Also:

Links to other databases for Wakefieldite-(Nd) :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - Google Images
4 - Google Scholar
5 - MinDAT
6 - MinMax(Deutsch)
7 - MinMax(English)
8 - Mineralienatlas (Deutsch)
9 - QUT Mineral Atlas
10 - Ruff.Info

Search for Wakefieldite-(Nd) using:

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

Visit our Advertisers for Wakefieldite-(Nd) :

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-(Nd) Mineral Data :

Ask about Wakefieldite-(Nd) 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-(Nd) Specimen Label here :

Wakefieldite-(Nd)

NdVO4
Dana No: 38.04.11.08 Strunz No: 08.AD.35
Locality:

Notes: