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Metavanuralite

Collectors Summary

Color zitronengelb
Streak color blassgelb
Hardness (Mohs) 2
Solubility +++ Säuren, stabil bei 20°C bei rel. Luftfeuchte von 28 bis 47%
Crystal System triklin, P1, P1

Chemism

Chemical formula

Al(UO2)2V2O8(OH)·8H2O

Chemical composition

Aluminium, Sauerstoff, Uran, Vanadium, Wasserstoff

Unit weight: 958.0455132 u; Number of atoms in the formula: 43

Info

Empirical formula:

Al(UO2)2V2O8(OH)·8H2O

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Hydrogen

H

1.79

17

39.53

1.0079470

17.1350990
Oxygen

O

35.07

21

48.84

15.9994300

335.9880300
Aluminium

Al

2.82

1

2.33

26.9815382

26.9815382
Vanadium

V

10.63

2

4.65

50.9415100

101.8830200
Uranium

U

49.69

2

4.65

238.0289130

476.0578260

Analysis wt%

UO3 : 59.63, V2O5 : 18.61, Al2O3 : 5.30, H2O : 16.20 (Ref: Bulletin de Mineralogie 70)

Strunz 9th edition incl. updates

4.HB.20

4: Oxide, Hydroxide (Oxide, Hydroxide, V[5,6]-Vanadate, Arsenite, Antimonite, Bismutite, Sulfite, Selenite, Tellurite, Iodate)
H: V[5,6] Vanadate
B: Uranyl-Gruppenvanadate (Sorovanadate)
20:Vanuralit-Gruppe

Lapis Classification

VII/E.11-020

VII: PHOSPHATE, ARSENATE UND VANADATE ("Phosphate" des Registers immer einschließlich isotyper Arsenate und Vanadate!)
E: Uranyl-Phosphate/Arsenate und Uranyl-Vanadate mit [UO2] 2+- [PO4]/[AsO4] 3- und [UO2] 2+-[V2O8] 6-, sowie isotype Vanadate (Sincosit-Reihe)
11: Uranyl-Gruppenvanadate mit [UO2] 2+-[V2O8] 6-

Classification by Hölzel

8.EE.140

8: PHOSPHATES ARSENATES VANADATES
E: Uranyl (Phospates-Arsenates-Vanadates)
E: UranylVanadates
1: C small-medium Vanuralite-Group

Dana 8th edition

42.11.13.02

42: Hydrated Phosphates, etc., Containing Hydroxyl or Halogen
11: Hydrated Phosphates, etc., Containing Hydroxyl or Halogen where (AB)4 (XO4)3 Zq · x(H2O)
13: Vanuralite Group

IMA status

Anerkannt von der CNMNC

Mineral status

anerkanntes Mineral

Optical Properties

Color

zitronengelb

Streak color

blassgelb

2V angle

Biaxial

Optical Data Luminescence

Most Common Activator

(UO2)2+ (Uranyl-Ion) spezifisch

Afterglow (Persistant Luminescence)

keine Daten

Crystallography

Crystal System

triklin

Class (H-M)

1, 1

Space Group number

1, 2

Space Group

P1, P1

Cell parameters a (Å)

10.46

Cell parameters b (Å)

8.44

Cell parameters c (Å)

10.43

Cell parameters a/b or c/a

1.239

Cell parameters c/b

1.236

Cell parameters α

75.88

Cell parameters β

102.83

Cell parameters γ

90.0

Z

2

Volume (ų)

869.241

X-Ray Powder Diffraction

9.92(100),
5.10(70),
4.174(90),
4.086(80),
3.240(80),
3.204(70),
3.155(90),
3.073(80)
XRD chart Metavanuralite

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

Crystals 3D

Open larger view

Physical Properties

Hardness (Mohs)

2

VHN (Hardness Vickers)

32 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

3.68 (berechnet)

3.66 ( ρ calc. Mineralienatlas )

Instability

+++ Säuren, stabil bei 20°C bei rel. Luftfeuchte von 28 bis 47%

(Co-)Type locality

(Co-)Type locality

Gabun/Haut-Ogooué, Provinz/Mpassa, Departement/Franceville/Mounana Mine

Preface

Author (Name, Year)

Cesbron, 1970

Safety Instructions

Industrial chemicals are often present in powder form and therefore often contain much higher dangers than natural, crystalline substances. These hazard statements refer to the classification of industrially used chemical compounds that may also occur in this natural mineral. The hazard classification makes no claim to completeness.




Safety classes: Ionizing radiation: Radioaktiv

References

Bulletin de la Société Française Minéralogie et de Cristallographie 93 (1970), 242

Other languages

German

Metavanuralit

Spanish

Metavanuralita

French

Metavanuralite

English

Metavanuralite

CNMNC (IMA)-Number

IMA 1970-003

CNMNC symbol

Symbol

Mvnr

Locations with GPS information

IDs

GUSID (Global unique identifier short form) i8u12uC6dkqTrh_Z-rkJGA
GUID (Global unique identifier) DAB5CB8B-BAE0-4A76-93AE-1FD9FAB90918
Database ID 2515