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Metauranocircite (Metauranocircite-I)

Pictures (6 Images total)

Meta-Uranocircit
Views (File:
1248685154
): 2643, Rating: 8.8
Meta-Uranocircit
Bildbreite: 2,5 mm; Fundort: La Dorgissière Mine, Saint-Amand-sur-Sèvre, Deux-Sèvres, Poitou-Charentes, Frankreich
Copyright: Jean-Marc Johannet; Contribution: Hg
Location: Frankreich/Nouvelle-Aquitaine, Region/Deux-Sèvres, Département/Bressuire, Arrondissement/Saint-Amand-sur-Sèvre/La Dorgissière Mine
Mineral: Metauranocircite
Image: 1248685154
Rating: 8.8 (votes: 10)
License: Usage for Mineralienatlas project only
Meta-Uranocircit

Bildbreite: 2,5 mm; Fundort: La Dorgissière Mine, Saint-Amand-sur-Sèvre, Deux-Sèvres, Poitou-Charentes, Frankreich
Copyright: Jean-Marc Johannet
Contribution: Hg 2009-07-27
Locality: La Dorgissière Mine / Saint-Amand-sur-Sèvre / Bressuire, Arrondissement / Deux-Sèvres, Département / Nouvelle-Aquitaine, Region / Frankreich
Meta-Uranocircit
Views (File:
1185361654
): 1802, Rating: 8.6
Meta-Uranocircit
Fundort: Krunkelbach, Menzenschwand, Schwarzwald, Deutschland; Bildbreite: 4 mm
Copyright: Stephan Wolfsried; Contribution: Hg
Location: Deutschland/Baden-Württemberg/Freiburg, Bezirk/Waldshut, Landkreis/St. Blasien/Menzenschwand/Krunkelbach
Mineral: Metauranocircite
Image: 1185361654
Rating: 8.6 (votes: 5)
License: Usage for Mineralienatlas project only
Meta-Uranocircit

Fundort: Krunkelbach, Menzenschwand, Schwarzwald, Deutschland; Bildbreite: 4 mm
Copyright: Stephan Wolfsried
Contribution: Hg 2007-07-25
Locality: Krunkelbach / Menzenschwand / St. Blasien / Waldshut, Landkreis / Freiburg, Bezirk / Baden-Württemberg / Deutschland
Metauranocircit
Views (File:
1267981881
): 2323, Rating: 8.33
Metauranocircit
Bildbreite: 3 mm; Fundort: Bel Air Mine, La Chapelle Largeau, Deux-Sèvres, Département, Poitou-Charentes, Region, Frankreich
Copyright: Jean-Marc Johannet; Contribution: Hg
Location: Frankreich/Nouvelle-Aquitaine, Region/Deux-Sèvres, Département/Bressuire, Arrondissement/La Chapelle-Largeau/Bel Air Mine
Mineral: Metauranocircite
Image: 1267981881
Rating: 8.33 (votes: 9)
License: Usage for Mineralienatlas project only
Metauranocircit

Bildbreite: 3 mm; Fundort: Bel Air Mine, La Chapelle Largeau, Deux-Sèvres, Département, Poitou-Charentes, Region, Frankreich
Copyright: Jean-Marc Johannet
Contribution: Hg 2010-03-07
Locality: Bel Air Mine / La Chapelle-Largeau / Bressuire, Arrondissement / Deux-Sèvres, Département / Nouvelle-Aquitaine, Region / Frankreich
Meta-Uranocircit xx
Views (File:
1120316249
): 1415
Meta-Uranocircit xx
Bildbreite: 3cm; Fundort: Heißer Stein, Wölsendorf
Copyright: berthold; Contribution: Chris18
Collection: berthold
Location: Deutschland/Bayern/Oberpfalz, Bezirk/Schwandorf, Landkreis/Wölsendorf, Revier/Stulln/Grube Heißer Stein
Mineral: Metauranocircite
Image: 1120316249
License: Usage for Mineralienatlas project only
Meta-Uranocircit xx

Bildbreite: 3cm; Fundort: Heißer Stein, Wölsendorf

Collection: berthold
Copyright: berthold
Contribution: Chris18 2005-07-02
Locality: Grube Heißer Stein / Stulln / Wölsendorf, Revier / Schwandorf, Landkreis / Oberpfalz, Bezirk / Bayern / Deutschland
Meta-Uranocircit
Views (File:
1248685251
): 701
Meta-Uranocircit
Bildbreite: 3 mm; Fundort: La Dorgissière Mine, Saint-Amand-sur-Sèvre, Deux-Sèvres, Poitou-Charentes, Frankreich
Copyright: Jean-Marc Johannet; Contribution: Hg
Location: Frankreich/Nouvelle-Aquitaine, Region/Deux-Sèvres, Département/Bressuire, Arrondissement/Saint-Amand-sur-Sèvre/La Dorgissière Mine
Mineral: Metauranocircite
Image: 1248685251
License: Usage for Mineralienatlas project only
Meta-Uranocircit

Bildbreite: 3 mm; Fundort: La Dorgissière Mine, Saint-Amand-sur-Sèvre, Deux-Sèvres, Poitou-Charentes, Frankreich
Copyright: Jean-Marc Johannet
Contribution: Hg 2009-07-27
Locality: La Dorgissière Mine / Saint-Amand-sur-Sèvre / Bressuire, Arrondissement / Deux-Sèvres, Département / Nouvelle-Aquitaine, Region / Frankreich

You find additional specimen at the Geolitho Museum

Collectors Summary

Color gelb - grün
Streak color gelblichweiß
Lustre Perlmuttglanz
Hardness (Mohs) 2 - 2.5
Solubility +++ Säuren, dehydr. zu Metauranocircit II
Crystal System monoklin, P21

Chemism

Chemical formula

Ba(UO2)2(PO4)2·8H2O

Chemical composition

Barium, Phosphor, Sauerstoff, Uran, Wasserstoff

Unit weight: 1011.4488004 u; Number of atoms in the formula: 41

Info

Empirical formula:

Ba(UO2)2(PO4)2·8H2O

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Hydrogen

H

1.59

16

39.02

1.0079470

16.1271520
Oxygen

O

31.64

20

48.78

15.9994300

319.9886000
Phosphorus

P

6.12

2

4.88

30.9737612

61.9475224
Barium

Ba

13.58

1

2.44

137.3277000

137.3277000
Uranium

U

47.07

2

4.88

238.0289130

476.0578260

Analysis wt%

BaO : 15.10, UO3 : 56.73, P2O5 : 13.98, H2O : 14.19 (Ref: berechnet)

Strunz 9th edition incl. updates

8.EB.10

8: Phosphate, Arsenate, Vanadate
E: Uranylphosphate und Arsenate
B: UO2:RO4 = 1:1
10:Meta-Autunit-Gruppe

Lapis Classification

VII/E.02-110

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)
2: Meta-Autunit-Gruppe

Classification by Hölzel

8.EA.560

8: PHOSPHATES ARSENATES VANADATES
E: Uranyl (Phospates-Arsenates-Vanadates)
A: Tetragonal Uranyl (Phosphates-Arsenates)
5: C large, V=2 Uranocircite-Group

Mineral status

anerkanntes Mineral

IMA Classification

IMA Classification

 Meta-Autunite group  ⇒ Metatorbernite subgroup

Optical Properties

Color

gelb - grün

Streak color

gelblichweiß

Lustre

Perlmuttglanz

max. Birefringence

0.013
Birefringence chart\! Metauranocircite title=Birefringence chart Metauranocircite

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

1.610

RI value γ / ε

1.623

Ri mean

1.614

2V angle

Uniaxial (-) 22°!

Crystallography

Crystal System

monoklin

Class (H-M)

2

Space Group number

4

Space Group

P21

Cell parameters a (Å)

6.965

Cell parameters b (Å)

6.964

Cell parameters c (Å)

17.65

Cell parameters a/b or c/a

1.000

Cell parameters c/b

2.534

Cell parameters α

90°

Cell parameters β

90°

Cell parameters γ

90°

Z

2

Volume (ų)

856.1

X-Ray Powder Diffraction

8.19(70),
5.37(60),
4.21(60),
3.58(100),
3.21(50),
2.08(70),
1.589(50),
1.518(50)
XRD chart Metauranocircite

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)

2 - 2.5

VHN (Hardness Vickers)

42 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

3.95 (gemessen)

3.923 ( ρ calc. Mineralienatlas )

Radioactivity

das Mineral ist radioaktiv!

Instability

+++ Säuren, dehydr. zu Metauranocircit II

(Co-)Type locality

(Co-)Type locality

Deutschland/Baden-Württemberg/Freiburg, Bezirk/Waldshut, Landkreis/St. Blasien/Menzenschwand/Krunkelbach

Preface

Occurrences

In der Oxidationszone uranhaltiger Lagerstätten, häufig auch auf Granitklüften in der Nähe solcher Lagerstätten

Generation conditions

sekundär Uranocircit aus uran- und bariumhaltigen Lösungen, später dann Entwässerung, diese kann sowohl natürlich als auch in der Sammlung (dann kein Mineral!) ablaufen und ist nicht reversibel

Associations

Quarz, Baryt, Limonit, Fluorit, Uranophan und Zeunerit, manchmal noch weitere U-Glimmer

Name from

Uranocircit nach circes = Falke wegen der zu Bergen nächstgelegenen Stadt Falkenstein, ansonsten wegen dem U-Gehalt. Das Meta gibt an, dass es sich um ein gegenüber dem Uranocircit entwässertes Mineral handelt.

Author (Name, Year)

Gaubert, 1904

Additional Information

Durch Wasserverlust aus Uranocircit entstanden.

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

American Mineralogist 38 (1953), 476.

Handbook of Mineralogy (Anthony et u.w.), 4 (2000), 366.

Doklady Chemistry 389 (2003), 203.

Canadian Mineralogist 43 (2005), 721.

Frédéric Hatert; Stuart J. Mills; Marco Pasero; Ritsuro Miyawaki; Ferdinando Bosi: CNMNC guidelines for the nomenclature of polymorphs and polysomes. Mineralogical Magazine Vol. 87, Nr. 2 (2023) S. 225-232. Umbenennung in Metauranocircit.

IMA group assignments

 
Meta-Autunite group
 
 
 

 
 
Metatorbernite subgroup
 
 
 

 
 
 
Metaheinrichite
Ba[UO2|AsO4]2·8H2O
tetragonal
 

 
 
 
Metasaléeite
Mg(UO2)2(PO4)2·8H2O
tetragonal
P4/nmm

 
 
 
Metatorbernite
Cu(UO2)2(PO4)2·8H2O
tetragonal
P4/n

 
 
 
Metauramphite ?
(NH4)2(UO2)2(PO4)2·6H2O
 
 

 
 
 
Metauranocircite
Ba(UO2)2(PO4)2·8H2O
monoklin
P21

 
 
 
Przhevalskite
Pb(UO2)2(PO4)2·4H2O
tetragonal
 

Refresh list

Actuality: 04. Sep 2024 - 10:46:12

Other languages

German

Metauranocircit

umbenannt; CNMNC Newsletter 69; Mineralogical Magazine, 86

Spanish

Metauranocircita I

English

Metauranocircite

renamed; CNMNC Newsletter 69; Mineralogical Magazine, 86

old name

German

Meta-Uranocircit I

Spanish

Meta-uranocircita I

French

Meta-uranocircite I

English

Meta-uranocircite I

German

Metauranocircit I

umbenannt; CNMNC Newsletter 69; Mineralogical Magazine, 86

English

Metauranocircite I

renamed; CNMNC Newsletter 69; Mineralogical Magazine, 86

Alternative Name

German

Meta-Uranocircit

German

Metauranocircit-I

Spanish

Metauranocircita-I

English

Metauranocircite-I

CNMNC symbol

Symbol

Murc-I

Locations with GPS information

IDs

GUSID (Global unique identifier short form) u20R5jHN4UeMtZ5CWR90jQ
GUID (Global unique identifier) E6116DBB-CD31-47E1-8CB5-9E42591F748D
Database ID 2486