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Metavauxite

Pictures (8 Images total)

Metavauxit
Views (File:
1263443503
): 1842, Rating: 7.8
Metavauxit
Größe: 29x15x12 mm; Fundort: Siglo Veinte Mine, Llallagua, Provinz Rafael Bustillo, Departamento Potosi, Bolivien
Copyright: Rob Lavinsky; Contribution: Philip Blümner
Location: Bolivien/Potosí, Departamento/Rafael Bustillo, Provinz/Llallagua/Siglo Veinte Mine (Llallagua Mine)
Mineral: Metavauxite
Image: 1263443503
Rating: 7.8 (votes: 5)
License: Usage for Mineralienatlas project only
Metavauxit

Größe: 29x15x12 mm; Fundort: Siglo Veinte Mine, Llallagua, Provinz Rafael Bustillo, Departamento Potosi, Bolivien

Copyright: Rob Lavinsky
Contribution: Philip Blümner 2010-01-14
Locality: Siglo Veinte Mine (Llallagua Mine) / Llallagua / Rafael Bustillo, Provinz / Potosí, Departamento / Bolivien
Metavauxit
Views (File:
1263443446
): 847
Metavauxit
Größe: 19x16x04 mm; Fundort: Siglo Veinte Mine, Llallagua, Provinz Rafael Bustillo, Departamento Potosi, Bolivien
Copyright: Rob Lavinsky; Contribution: Philip Blümner
Location: Bolivien/Potosí, Departamento/Rafael Bustillo, Provinz/Llallagua/Siglo Veinte Mine (Llallagua Mine)
Mineral: Metavauxite
Image: 1263443446
Rating: 8 (votes: 1)
License: Usage for Mineralienatlas project only
Metavauxit

Größe: 19x16x04 mm; Fundort: Siglo Veinte Mine, Llallagua, Provinz Rafael Bustillo, Departamento Potosi, Bolivien

Copyright: Rob Lavinsky
Contribution: Philip Blümner 2010-01-14
Locality: Siglo Veinte Mine (Llallagua Mine) / Llallagua / Rafael Bustillo, Provinz / Potosí, Departamento / Bolivien
Metavauxit mit blauem Vauxit
Views (File:
1263443585
): 810
Metavauxit mit blauem Vauxit
Größe: 26x11x10 mm; Fundort: Siglo Veinte Mine, Llallagua, Provinz Rafael Bustillo, Departamento Potosi, Bolivien
Copyright: Rob Lavinsky; Contribution: Philip Blümner
Location: Bolivien/Potosí, Departamento/Rafael Bustillo, Provinz/Llallagua/Siglo Veinte Mine (Llallagua Mine)
Mineral: Metavauxite
Image: 1263443585
Rating: 7 (votes: 1)
License: Usage for Mineralienatlas project only
Metavauxit mit blauem Vauxit

Größe: 26x11x10 mm; Fundort: Siglo Veinte Mine, Llallagua, Provinz Rafael Bustillo, Departamento Potosi, Bolivien

Copyright: Rob Lavinsky
Contribution: Philip Blümner 2010-01-14
Locality: Siglo Veinte Mine (Llallagua Mine) / Llallagua / Rafael Bustillo, Provinz / Potosí, Departamento / Bolivien
Metavauxit
Views (File:
1263443553
): 756
Metavauxit
Größe: 42x12x11 mm; Fundort: Siglo Veinte Mine, Llallagua, Provinz Rafael Bustillo, Departamento Potosi, Bolivien
Copyright: Rob Lavinsky; Contribution: Philip Blümner
Location: Bolivien/Potosí, Departamento/Rafael Bustillo, Provinz/Llallagua/Siglo Veinte Mine (Llallagua Mine)
Mineral: Metavauxite
Image: 1263443553
Rating: 6.33 (votes: 3)
License: Usage for Mineralienatlas project only
Metavauxit

Größe: 42x12x11 mm; Fundort: Siglo Veinte Mine, Llallagua, Provinz Rafael Bustillo, Departamento Potosi, Bolivien

Copyright: Rob Lavinsky
Contribution: Philip Blümner 2010-01-14
Locality: Siglo Veinte Mine (Llallagua Mine) / Llallagua / Rafael Bustillo, Provinz / Potosí, Departamento / Bolivien
Metavauxit
Views (File:
1263443376
): 225
Metavauxit
Größe: 16x12 mm; Fundort: Siglo Veinte Mine, Llallagua, Provinz Rafael Bustillo, Departamento Potosi, Bolivien
Copyright: John Sobolewski; Contribution: Philip Blümner
Location: Bolivien/Potosí, Departamento/Rafael Bustillo, Provinz/Llallagua/Siglo Veinte Mine (Llallagua Mine)
Mineral: Metavauxite
Image: 1263443376
License: Usage for Mineralienatlas project only
Metavauxit

Größe: 16x12 mm; Fundort: Siglo Veinte Mine, Llallagua, Provinz Rafael Bustillo, Departamento Potosi, Bolivien

Copyright: John Sobolewski
Contribution: Philip Blümner 2010-01-14
Locality: Siglo Veinte Mine (Llallagua Mine) / Llallagua / Rafael Bustillo, Provinz / Potosí, Departamento / Bolivien

You find additional specimen at the Geolitho Museum

Collectors Summary

Color farblos, weiß, blassgrün
Streak color weiß
Hardness (Mohs) 3
Solubility +++ Säuren
Crystal System monoklin, P21/c

Chemism

Chemical formula

Fe2+Al2(PO4)2(OH)2·8H2O

Chemical composition

Aluminium, Eisen, Phosphor, Sauerstoff, Wasserstoff

Unit weight: 477.8885848 u; Number of atoms in the formula: 41

Info

Empirical formula:

FeAl2(PO4)2(OH)2·8H2O

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Hydrogen

H

3.80

18

43.90

1.0079470

18.1430460

Oxygen

O

60.26

18

43.90

15.9994300

287.9897400

Aluminium

Al

11.29

2

4.88

26.9815382

53.9630764

Phosphorus

P

12.96

2

4.88

30.9737612

61.9475224

Iron

Fe

11.69

1

2.44

55.8452000

55.8452000

Analysis wt%

MgO : 0.55, FeO : 14.57, Al2O3 : 21.01, P2O5 : 29.55, H2O : 33.22 (Ref: Dana, 7th ed. 2)

Strunz 9th edition incl. updates

8.DC.25

8: Phosphate, Arsenate, Vanadate
D: Phosphate, mit weiteren Anionen, mit H2O
C: Mit ausschließlich mittelgroßen [Kationen], (OH, etc.):RO4 = 1:1 und < 2:1
25:Strunzit-Gruppe

Lapis Classification

VII/D.09-020

VII: PHOSPHATE, ARSENATE UND VANADATE ("Phosphate" des Registers immer einschließlich isotyper Arsenate und Vanadate!)
D: Wasserhaltige Phosphate, mit fremden Anionen
9: Mittelgroße Kationen: Cu-Zn-Mn-Al-Fe

Classification by Hölzel

8.DE.470

8: PHOSPHATES ARSENATES VANADATES
D: Phosphates (+Anions +Water)
E: Phosphates, Me(2+) Me2(3+) ~[OH|XO4]2*nH2O
4: nH2O=8 Gordonite-Group

Dana 8th edition

42.11.11.01

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

IMA status

Erstbeschreibung vor CNMNC-Gründung (1959), als Mineral meist anerkannt

Mineral status

anerkanntes Mineral

Optical Properties

Color

farblos, weiß, blassgrün

Streak color

weiß

max. Birefringence

0.027

Birefringence chart\! Metavauxite title=Birefringence chart Metavauxite

Michel-Levy Color Chart viewed according to the maximum birefringence (at 30μm). Mineral color is not taken into account. Click on the image to enlarge or change thickness.

RI value α / ω / n

1.550

RI value β

1.561

RI value γ / ε

1.577

Ri mean

1.563

2V angle

Biaxial (+) 80°

Crystallography

Crystal System

monoklin

Class (H-M)

2/m

Space Group number

14

Space Group

P21/c

Cell parameters a (Å)

10.21

Cell parameters b (Å)

9.57

Cell parameters c (Å)

6.93

Cell parameters a/b or c/a

1.067

Cell parameters c/b

0.724

Cell parameters α

90°

Cell parameters β

98.3

Cell parameters γ

90°

Z

2

Volume (ų)

670.036

X-Ray Powder Diffraction

10.12(70),
5.095(50),
4.687(100),
4.337(80),
3.985(50),
2.764(70),
2.749(30),
2.266(30)

XRD chart Metavauxite

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

Crystals 3D

Open larger view

Crystal Structure 3D

Open larger view

Physical Properties

Hardness (Mohs)

3

VHN (Hardness Vickers)

83 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

2.345 (gemessen)

2.369 ( ρ calc. Mineralienatlas )

Instability

+++ Säuren

Preface

Author (Name, Year)

Gordon, 1927

References

Handbook of Mineralogy (Anthony et al.), 4 (2000), 371

Other languages

German

Metavauxit

Spanish

Metavauxita

French

Metavauxite

English

Metavauxite

Russian

Метавоксит

CNMNC symbol

Symbol

Mvx

Locations with GPS information

IDs

GUSID (Global unique identifier short form) H5qLoE9kvU6XYCbKTqCuyg
GUID (Global unique identifier) A08B9A1F-644F-4EBD-9760-26CA4EA0AECA
Database ID 2517