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Barnesite (Barnesit)

Pictures (3 Images total)

Barnesit, BB 1,8 mm
Views (File:
1238116978
): 1287
Barnesit, BB 1,8 mm
Cactus Rat Mine, Yellow Cat District, Grand Co., Utah
Copyright: Hannes Osterhammer; Contribution: eschuhbauer
Collection: Lithothek der Münchener Micromounter, Collection number: B003984, Donator: eschuhbauer
Location: USA/Utah/Grand Co./Yellow Cat District/Cisco/Cactus Rat Mine
Mineral: Barnesite
Image: 1238116978
Rating: 5.5 (votes: 2)
License: Usage for Mineralienatlas project only
Barnesit, BB 1,8 mm (SNr: B003984)

Cactus Rat Mine, Yellow Cat District, Grand Co., Utah
Collection: Lithothek der Münchener Micromounter
Copyright: Hannes Osterhammer
Contribution: eschuhbauer 2009-03-27
Locality: Cactus Rat Mine / Cisco / Yellow Cat District / Grand Co. / Utah / USA
Barnesit xx
Views (File:
1217200450
): 1506
Barnesit xx
Bildbreite: 3 mm; Fundort: Vanadium Queen Mine, Paradox Valley District, Paradox Valley, San Juan Co., Utah, USA
Copyright: Leonardus; Contribution: slugslayer
Location: USA/Utah/San Juan Co./La Sal/La Sal Creek/Vanadium Queen Mine
Mineral: Barnesite
Image: 1217200450
Rating: 6 (votes: 1)
License: Usage for Mineralienatlas project only
Barnesit xx

Bildbreite: 3 mm; Fundort: Vanadium Queen Mine, Paradox Valley District, Paradox Valley, San Juan Co., Utah, USA
Copyright: Leonardus
Contribution: slugslayer 2008-07-28
Locality: Vanadium Queen Mine / La Sal Creek / La Sal / San Juan Co. / Utah / USA
Barnesit
Views (File:
1470047403
): 694
Barnesit
von der Liebenbergit-Fundstelle bei Kamariza, Laurion, Attika, Griechenland; nadelig, kugelig, krustig, braun; BB = 3,6 mm
Copyright: Hannes Osterhammer; Contribution: Münchener Micromounter
Collection: Lithothek der Münchener Micromounter, Collection number: A034560, Donator: Peter Köhlen
Location: Griechenland/Attika (Attikí, Attica)/East Attica/Lavreotiki/Lavrion (Laurion), Schlackenfundstellen/Agios Konstantinos (Kamariza)/Liebenbergit-Fundstelle
Mineral: Barnesite
Image: 1470047403
License: Usage for Mineralienatlas project only
Barnesit (SNr: A034560)

von der Liebenbergit-Fundstelle bei Kamariza, Laurion, Attika, Griechenland; nadelig, kugelig, krustig, braun; BB = 3,6 mm
Collection: Lithothek der Münchener Micromounter
Copyright: Hannes Osterhammer
Contribution: Münchener Micromounter 2016-08-01
Locality: Liebenbergit-Fundstelle / Agios Konstantinos (Kamariza) / Lavrion (Laurion), Schlackenfundstellen / Lavreotiki / East Attica / Attika (Attikí, Attica) / Griechenland

You find additional Barnesit specimen at the Geolitho Museum

Collectors Summary

Color braun rot, dunkelrot
Streak color bräunlich rot
Solubility +++ H2O
Crystal System monoklin, P2/m

Chemism

Chemical formula

(Na,Ca)2V65+O16·3H2O

Chemical composition

Calcium, Natrium, Sauerstoff, Vanadium, Wasserstoff

Unit weight: 670.2097673 u; Number of atoms in the formula: 33

Info

Empirical formula:

(Na0.75Ca0.25)2V6O16·3H2O

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Hydrogen

H

0.90

6

18.18

1.0079470

6.0476820
Oxygen

O

45.36

19

57.58

15.9994300

303.9891700
Sodium

Na

5.15

1.5

4.55

22.9897702

34.4846553
Calcium

Ca

2.99

0.5

1.52

40.0784000

20.0392000
Vanadium

V

45.60

6

18.18

50.9415100

305.6490600

Analysis wt%

V2O5 : 82.40, Na2O : 9.10, H2O : 7.73, SiO2 : 0.40 (Ref: American Mineralogist 63)

Strunz 9th edition incl. updates

4.HG.45

4: Oxide, Hydroxide (Oxide, Hydroxide, V[5,6]-Vanadate, Arsenite, Antimonite, Bismutite, Sulfite, Selenite, Tellurite, Iodate)
H: V[5,6] Vanadate
G: Unklassifizierte Vanadium ~[V]-Oxide
45:Barnesit-Gruppe

Lapis Classification

IV/G.12-010

IV: OXIDE
G: Vanadiumoxide (Polyvanadate mit V4+/5+)
12: Schichtvanadate, als typische Vanadiumbronzen

Classification by Hölzel

4.GA.790

4: OXIDES
G: Vanadin, Uranyl Oxides and Hydroxides
A: Vanadin Oxides and Hydroxides, VBronzes
7: Fibrous Bronzes Hewettite-Group

Dana 8th edition

47.03.01.03

47: Vanadium Oxysalts
03: Vanadium Oxysalts (Hydrated)
01: Hewettite Group

IMA status

Anerkannt von der CNMNC

Mineral status

anerkanntes Mineral

Optical Properties

Color

braun rot, dunkelrot

Streak color

bräunlich rot

max. Birefringence

0.2>

RI value α / ω / n

1.797

RI value β

2.0>

RI value γ / ε

2.0>

2V angle

Biaxial

Crystallography

Crystal System

monoklin

Class (H-M)

2/m

Space Group number

10

Space Group

P2/m

Cell parameters a (Å)

12.17

Cell parameters b (Å)

3.602

Cell parameters c (Å)

7.78

Cell parameters a/b or c/a

3.379

Cell parameters c/b

2.160

Cell parameters α

90°

Cell parameters β

95.3

Cell parameters γ

90°

Z

1

Volumne (ų)

339.589

X-Ray Powder Diffraction

12.2(30),
7.90(100),
3.70(10),
3.45(40),
3.12(70),
2.92(20)
XRD chart Barnesite

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)

3.15

3.277 ( ρ calc. Mineralienatlas )

Instability

+++ H2O

(Co-)Type locality

(Co-)Type locality

USA/Utah/Grand Co./Yellow Cat District/Cisco/Cactus Rat Mine

Preface

Author (Name, Year)

Weeks & Ross & Marvin, 1963

References

Handbook of Mineralogy (Anthony et al.), 3 (1997), 43

Other languages

German

Barnesit

Spanish

Barnesita

English

Barnesite

French

Barnesite

Russian

Барнесит

CNMNC symbol

Symbol

Bar

Locations with GPS information