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Metaschoepite (Metaschoepit)

Pictures (4 Images total)

Metaschoepit (analysiert)
Views (File:
1287942501
): 1064
Metaschoepit (analysiert)
Größe: 1,04 mm; Fundort: Miniera di Novazza, Val Goglio, Serianatal (Val Seriana), Bergamo, Provinz, Lombardei (Lombardia), Region, Italien
Copyright: Matteo Chinellato; Contribution: Hg
Collection: Domenico Preite
Location: Italien/Lombardei (Lombardia), Region/Bergamo, Provinz/Serianatal (Val Seriana)/Val Goglio/Miniera di Novazza
Mineral: Metaschoepite
Image: 1287942501
Rating: 8 (votes: 1)
License: Usage for Mineralienatlas project only
Metaschoepit (analysiert)

Größe: 1,04 mm; Fundort: Miniera di Novazza, Val Goglio, Serianatal (Val Seriana), Bergamo, Provinz, Lombardei (Lombardia), Region, Italien
Collection: Domenico Preite
Copyright: Matteo Chinellato
Contribution: Hg 2010-10-24
Locality: Miniera di Novazza / Val Goglio / Serianatal (Val Seriana) / Bergamo, Provinz / Lombardei (Lombardia), Region / Italien
Metaschoepit
Views (File:
1328188502
): 660
Metaschoepit
Größe: 1,06 mm; Fundort: Miniera di Novazza, Val Goglio, Serianatal (Val Seriana), Bergamo, Provinz, Lombardei (Lombardia), Region, Italien
Copyright: Matteo Chinellato; Contribution: Hg
Collection: Domenico Preite
Location: Italien/Lombardei (Lombardia), Region/Bergamo, Provinz/Serianatal (Val Seriana)/Val Goglio/Miniera di Novazza
Mineral: Metaschoepite
Image: 1328188502
License: Usage for Mineralienatlas project only
Metaschoepit

Größe: 1,06 mm; Fundort: Miniera di Novazza, Val Goglio, Serianatal (Val Seriana), Bergamo, Provinz, Lombardei (Lombardia), Region, Italien
Collection: Domenico Preite
Copyright: Matteo Chinellato
Contribution: Hg 2012-02-02
Locality: Miniera di Novazza / Val Goglio / Serianatal (Val Seriana) / Bergamo, Provinz / Lombardei (Lombardia), Region / Italien
Metaschoepit (orangegelb)
Views (File:
1514390419
): 513
Metaschoepit (orangegelb)
mit Cuprosklodowskit (grünlich) und Gips xx; Jachymov/Erzgebirge,Böhmen,Tschechien; Bildbreite ca.3 mm
Copyright: Haubi; Contribution: Haubi
Collection: Haubi
Location: Tschechien/Karlsbad (Karlovarsky kraj)/Karlsbad (Karlovy Vary), Bezirk/St. Joachimsthal (Jáchymov)
Mineral: Metaschoepite
Image: 1514390419
License: Usage for Mineralienatlas project only
Metaschoepit (orangegelb)

mit Cuprosklodowskit (grünlich) und Gips xx; Jachymov/Erzgebirge,Böhmen,Tschechien; Bildbreite ca.3 mm
Collection: Haubi
Copyright: Haubi
Contribution: Haubi 2017-12-27
Locality: St. Joachimsthal (Jáchymov) / Karlsbad (Karlovy Vary), Bezirk / Karlsbad (Karlovarsky kraj) / Tschechien
Metaschoepit
Views (File:
1656333298
): 80
Metaschoepit
Schacht 139 Marienberg; Bildbreite 2,3 mm , analysiert durch J.Desor
Copyright: Ulrich Hansper; Contribution: Ulrich Hansper
Collection: Ulrich Hansper
Location: Deutschland/Sachsen/Erzgebirgskreis/Marienberg, Revier/Marienberg/Lauta/Schacht 139 (Abrahamhalde)
Mineral: Metaschoepite
Image: 1656333298
License: Usage for Mineralienatlas project only
Metaschoepit

Schacht 139 Marienberg; Bildbreite 2,3 mm , analysiert durch J.Desor
Collection: Ulrich Hansper
Copyright: Ulrich Hansper
Contribution: Ulrich Hansper 2022-06-27
Locality: Schacht 139 (Abrahamhalde) / Lauta / Marienberg / Marienberg, Revier / Erzgebirgskreis / Sachsen / Deutschland

Collectors Summary

Color gelb, goldgelb
Streak color hellgelb
Hardness (Mohs) 2.5
Cleavages {001} (in Analogie zu Schoepit und Paraschoepit, da dies ein dazwischen liegendes Dehydratisierungsprodukt ist)
Solubility +++ Säuren
Crystal System orthorhombisch, Pbna

Chemism

Chemical formula

(UO2)8O2(OH)12·10H2O

Chemical composition

Sauerstoff, Uran, Wasserstoff

Unit weight: 2576.462808 u; Number of atoms in the formula: 80

Info

Empirical formula:

(UO2)8O2(OH)12·10H2O

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Hydrogen

H

1.25

32

40.00

1.0079470

32.2543040
Oxygen

O

24.84

40

50.00

15.9994300

639.9772000
Uranium

U

73.91

8

10.00

238.0289130

1,904.2313040

Analysis wt%

UO3 : 91.42, H2O : 8.58 (Ref: berechnet)

Strunz 9th edition incl. updates

4.GA.05

4: Oxide, Hydroxide (Oxide, Hydroxide, V[5,6]-Vanadate, Arsenite, Antimonite, Bismutite, Sulfite, Selenite, Tellurite, Iodate)
G: Uranylhydroxide
A: ohne zusätzliche [Kationen]
05:Schoepit-Gruppe

Lapis Classification

IV/H.01-050

IV: OXIDE
H: Uranyl([UO2] 2+)-Hydroxide und -Hydrate

Classification by Hölzel

4.GB.110

4: OXIDES
G: Vanadin, Uranyl Oxides and Hydroxides
B: Uranylhydroxides-Hydrates
1: Without Cations Schoepite-Group

Dana 8th edition

05.02.01.01

05: Oxides Containing Uranium and Thorium
02: Oxides Containing Uranium and Thorium with a cation charge of 6+ (AO3) and hydrated
01: Schoepite Group

IMA status

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

Mineral status

anerkanntes Mineral

Optical Properties

Color

gelb, goldgelb

Streak color

hellgelb

Diaphaneity (Transparency)

durchscheinend

max. Birefringence

0.055
Birefringence chart\! Metaschoepite title=Birefringence chart Metaschoepite

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

1.690 - 1.700

RI value β

1.714 - 1.750

RI value γ / ε

1.735 - 1.770

Ri mean

1.725

2V angle

Biaxial (-)

Orientation

X = c; Y = b; Z = a

Dispersion

r > v

Pleochroism

X = fast farblos; Y = Z = zitronengelb bis goldgelb

Optical Data Luminescence

Color SW-UV (254nm)

  

grünlich gelb

SW-UV Intensity

schwach

Most Common Activator

(UO2)2+ (Uranyl-Ion) spezifisch

Afterglow (Persistant Luminescence)

keine Daten

Crystallography

Crystal System

orthorhombisch

Class (H-M)

mmm

Space Group number

60

Space Group

Pbna

Cell parameters a (Å)

14.6801

Cell parameters b (Å)

14.0287

Cell parameters c (Å)

16.7196

Cell parameters a/b or c/a

1.046

Cell parameters c/b

1.192

Cell parameters α

90°

Cell parameters β

90°

Cell parameters γ

90°

Z

4

Volumne (ų)

3443.28

X-Ray Powder Diffraction

7.35(100),
3.67(20),
3.59(40),
3.49(20),
3.48(10),
3.22(50),
3.16(30),
2.563(20)
XRD chart Metaschoepite

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)

2.5

VHN (Hardness Vickers)

53 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

4.919 (berechnet) 4.69 - 4.97 (berechnet)

4.97 ( ρ calc. Mineralienatlas )

Cleavages

{001} (in Analogie zu Schoepit und Paraschoepit, da dies ein dazwischen liegendes Dehydratisierungsprodukt ist)

Tenacity

spröde

Radioactivity

radioaktiv da Uran-haltig

Instability

+++ Säuren

(Co-)Type locality

(Co-)Type locality

Demokratische Republik Kongo/Katanga (Shaba), Provinz/Ober-Katanga (Haut-Katanga), Distrikt/Shinkolobwe (Kasolo)/Shinkolobwe Mine (Kasolo Mine)

Type material

National Museum of Natural History, Washington, D.C., USA

Collection number of type material

94712

Preface

Name from

Vom griechischen meta, für einen niedrigeren Hydratationszustand, und seine Beziehung zu Schoepit

Author (Name, Year)

Christ & Clark, 1960

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 45 (1960), 1026

American Mineralogist 50 (1965), 235

Acta Crystallographica B56 (2000), 577

American Mineralogist 92 (2007), 662-669

Other languages

German

Metaschoepit

Spanish

Metaschoepita

French

Metaschoepite

English

Metaschoepite

Alternative Name

English

SchoepiteII

CNMNC symbol

Symbol

Mshp

Locations with GPS information