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Wakefieldite-(Nd)

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Wakefieldit-(Nd)
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Wakefieldit-(Nd)
schwarze Massen von Wakefieldit-(Nd), Arase Mine, Kami, Kochi, Shikoku, Japan; BB ~ 1 cm
Copyright: Joy Desor; Contribution: openpit
Location: Japan/Shikoku (Schikoku), Insel/Kochi, Präfektur/Arase Mine
Mineral: Wakefieldite-(Nd)
Image: 1588010172
License: Usage for Mineralienatlas project only
Wakefieldit-(Nd)

schwarze Massen von Wakefieldit-(Nd), Arase Mine, Kami, Kochi, Shikoku, Japan; BB 1 cm

Copyright: Joy Desor
Contribution: openpit 2020-04-27
Locality: Arase Mine / Kochi, Präfektur / Shikoku (Schikoku), Insel / Japan

Collectors Summary

Crystal System tetragonal, I41/amd

Chemism

Chemical formula

NdVO4

Additional chem. information

Xenotim Gruppe

Chemical composition

Neodymium, Sauerstoff, Vanadium

Unit weight: 259.18223 u; Number of atoms in the formula: 6

Info

Empirical formula:

NdVO4

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Oxygen

O

24.69

4

66.67

15.9994300

63.9977200

Vanadium

V

19.65

1

16.67

50.9415100

50.9415100

Neodymium

Nd

55.65

1

16.67

144.2430000

144.2430000

Analysis wt%

As2O5 : 0.93, V2O5 : 35.25, Fe2O3 : 0.41, MnO : 1.45, Y2O3 : 2.87, La2O3 : 7.61, Ce2O3 : 7.37, Pr2O3 : 6.04, Nd2O3 : 26.79, Sm2O3 : 4.41, Eu2O3 : 1.36, Gd2O3 : 3.41, Dy2O3 : 1.41, Ln2O3 : 61.59 (Ref: Res.Geol.2011)

Strunz 9th edition incl. updates

8.AD.35

8: Phosphate, Arsenate, Vanadate
A: Phosphate, etc., ohne weitere Anionen, ohne H2O
D: Mit ausschließlich großen [Kationen]
35:Xenotim-Gruppe

Lapis Classification

VII/A.14-045

VII: PHOSPHATE, ARSENATE UND VANADATE ("Phosphate" des Registers immer einschließlich isotyper Arsenate und Vanadate!)
A: Wasserfreie Phosphate [PO4] 3-, ohne fremde Anionen
14: Sehr große Kationen: Ca-Na-K, SE, Bi u.a.; Xenotim-Gruppe

Classification by Hölzel

8.AE.330

8: PHOSPHATES ARSENATES VANADATES
A: Phosphates (-anions -water)
E: Xenotime-Group

IMA status

Neue Mineralien Okt. 2008 - IMA-WEB-Seite [anerkannt]

Mineral status

anerkanntes Mineral

IMA Classification

IMA Classification

Xenotime group

Optical Properties

2V angle

Uniaxial

Crystallography

Crystal System

tetragonal

Class (H-M)

4/mmm

Space Group number

141

Space Group

I41/amd

Cell parameters a (Å)

7.338

Cell parameters b (Å)

-

Cell parameters c (Å)

6.509

Cell parameters a/b or c/a

0.887

Cell parameters c/b

-

Cell parameters α

90°

Cell parameters β

90°

Cell parameters γ

90°

Z

4

Volume (ų)

350.485

X-Ray Powder Diffraction

4.84(27), 3.67(100), 2.92(7), 2.74(51), 2.60(11), 2.29(9), 2.09(14), 1.886(25)

XRD chart Wakefieldite-(Nd)

Calculated from d-spacing and intensity at 0.1541838 nm (Cu)

Crystals 3D

Open larger view

Crystal Structure 3D

Open larger view

Physical Properties

Density (g/cm³)

4.912 ( ρ calc. Mineralienatlas )

Preface

Name from

Takeru Moriyama, 2008

References

Neue Mineralien Okt. 2008 - IMA-WEB-Seite [anerkannt].

IMA group assignments

Other languages

German

Wakefieldit-(Nd)

Spanish

Wakefieldita-(Nd)

English

Wakefieldite-(Nd)

Japanese

ネオジムウェークフィールド石

CNMNC (IMA)-Number

IMA 2008-031

CNMNC symbol

Symbol

Wf-Nd

IDs

GUSID (Global unique identifier short form) 3CRHyM0hpEC11a-UpIK9hQ
GUID (Global unique identifier) C84724DC-21CD-40A4-B5D5-AF94A482BD85
Database ID 5007