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Metaschoepite

A valid IMA mineral species - grandfathered
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About MetaschoepiteHide

01495120017271925303567.jpg
Alfred Schoep
Formula:
(UO2)8O2(OH)12 · 10H2O
Studies on synthetic metaschoepite (Weller et al. 2000, Kubatko et al. 2006) confirmed presence of 10H2O.
Crystal System:
Orthorhombic
Member of:
Name:
Named by Charles L. Christ and Joan R. Clark in 1960 for the dehydrated relationship of the mineral to schoepite.
May occur as a dehydration product of schoepite, and may itself dehydrate to paulscherrerite.


Unique IdentifiersHide

Mindat ID:
2684
Long-form identifier:
mindat:1:1:2684:6

IMA Classification of MetaschoepiteHide

Approved, 'Grandfathered' (first described prior to 1959)
IMA Formula:
(U6+O2)8O2(OH)12·10H2O

Classification of MetaschoepiteHide

4.GA.05

4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
G : Uranyl Hydroxides
A : Without additional cations
5.2.1.1

5 : OXIDES CONTAINING URANIUM OR THORIUM
2 : AXO3·xH2O
7.16.4

7 : Oxides and Hydroxides
16 : Oxides of U

Mineral SymbolsHide

As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.

SymbolSourceReference for Standard
MshpIMA–CNMNCWarr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43

Chemistry of MetaschoepiteHide

Mindat Formula:
(UO2)8O2(OH)12 · 10H2O

Studies on synthetic metaschoepite (Weller et al. 2000, Kubatko et al. 2006) confirmed presence of 10H2O.
Element Weights:
Element% weight
U73.909 %
O24.839 %
H1.252 %

Calculated from ideal end-member formula.
U
O
H

Crystallography of MetaschoepiteHide

Crystal System:
Orthorhombic
Class (H-M):
mmm(2/m2/m2/m) - Dipyramidal
Space Group:
Pbcn
Cell Parameters:
a = 13.98 Å, b = 16.7 Å, c = 14.67 Å
Ratio:
a:b:c = 0.837 : 1 : 0.878
Unit Cell V:
3,424.95 ų (Calculated from Unit Cell)

Crystal StructureHide

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IDSpeciesReferenceLinkYearLocalityPressure (GPa)Temp (K)
0004319MetaschoepiteKlingensmith A L, Deely K M, Kinman W S, Kelly V, Burns P C (2007) Neptunium incorporation in sodium-substituted metaschoepite American Mineralogist 92 662-6692007synthetic0293
0004318MetaschoepiteKlingensmith A L, Deely K M, Kinman W S, Kelly V, Burns P C (2007) Neptunium incorporation in sodium-substituted metaschoepite American Mineralogist 92 662-6692007synthetic0293
0004317MetaschoepiteKlingensmith A L, Deely K M, Kinman W S, Kelly V, Burns P C (2007) Neptunium incorporation in sodium-substituted metaschoepite American Mineralogist 92 662-6692007synthetic0293
0004316MetaschoepiteKlingensmith A L, Deely K M, Kinman W S, Kelly V, Burns P C (2007) Neptunium incorporation in sodium-substituted metaschoepite American Mineralogist 92 662-6692007synthetic0293
0004315MetaschoepiteKlingensmith A L, Deely K M, Kinman W S, Kelly V, Burns P C (2007) Neptunium incorporation in sodium-substituted metaschoepite American Mineralogist 92 662-6692007Katanga, Congo0293
0009921MetaschoepiteWeller M T, Light M E, Gelbrich T (2000) Structure of uranium (VI) oxide dihydrate UO3*2H2O; synthetic meta-schoepite (UO2)4O(OH)6*5H2O Acta Crystallographica B56 577-5832000synthetic0293
CIF Raw Data - click here to close

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
5.09 Å(100)
3.45 Å(25)
3.39 Å(17)
2.890 Å(7)
2.48 Å(7 broad)
2.542 Å(6)
2.023 Å(5)
Comments:
Shinkolobwe Mine, Haut-Katanga, DR Congo. The data are from Christ and Clark (1960).

Geological EnvironmentHide

Paragenetic Mode(s):
Paragenetic ModeEarliest Age (Ga)
Stage 7: Great Oxidation Event<2.4
47a : [Near-surface hydration of prior minerals]
47f : [Uranyl (U⁶⁺) minerals]

Type Occurrence of MetaschoepiteHide

Other Language Names for MetaschoepiteHide

Relationship of Metaschoepite to other SpeciesHide

Member of:
Other Members of Schoepite Group:
PaulscherreriteUO2(OH)2Mon.
Schoepite(UO2)8O2(OH)12 · 12H2OOrth. mmm(2/m2/m2/m) : Pbca

Common AssociatesHide

Associations Based on Photo Data:
9 photos of Metaschoepite associated with Umohoite(UO2)MoO4 · 2H2O
8 photos of Metaschoepite associated with ParauranophaneCa(UO2)2(SiO3OH)2 · 5H2O
4 photos of Metaschoepite associated with UranophaneCa(UO2)2(SiO3OH)2 · 5H2O
4 photos of Metaschoepite associated with HydronováčekiteMg(UO2)2(AsO4)2 · 12H2O
3 photos of Metaschoepite associated with BecquereliteCa(UO2)6O4(OH)6 · 8H2O
2 photos of Metaschoepite associated with FourmarieritePb(UO2)4O3(OH)4 · 4H2O
2 photos of Metaschoepite associated with BaryteBaSO4
1 photo of Metaschoepite associated with GypsumCaSO4 · 2H2O
1 photo of Metaschoepite associated with VandendriesscheitePbU7O22 · 12H2O
1 photo of Metaschoepite associated with UraniniteUO2

Related Minerals - Strunz-mindat GroupingHide

4.GA.05ParaschoepiteUO3 · 2H2OOrth. mmm(2/m2/m2/m) : Pbca
4.GA.05Schoepite(UO2)8O2(OH)12 · 12H2OOrth. mmm(2/m2/m2/m) : Pbca
4.GA.10IanthiniteU4+(UO2)5O7 · 10H2OOrth. mm2 : Amm2
4.GA.15MetastudtiteUO4 · 2H2OOrth. mmm(2/m2/m2/m) : Pnma
4.GA.15Studtite[(UO2)(O2)(H2O)2] · H2OMon. 2/m : B2/b
4.GA.20PaulscherreriteUO2(OH)2Mon.

RadioactivityHide

Other InformationHide

Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

Internet Links for MetaschoepiteHide

References for MetaschoepiteHide

Reference List:

Localities for MetaschoepiteHide

Showing 28 localities.

This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.
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Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for references and further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (e.g. from pseudomorphs).

All localities listed without proper references should be considered as questionable.
Australia
 
  • South Australia
    • Pastoral Unincorporated Area
      • Arkaroola (Arkaroola Wilderness Sanctuary; Arkaroola Station)
        • Mount Painter area
Brugger et al. (2003) +1 other reference
  • Tasmania
    • Northern Midlands municipality
      • Rossarden mining district
Bottrill (2021)
Canada
 
  • Ontario
    • Haliburton County
      • Highlands East Township
        • Cardiff Township
Reiner Mielke and Travis Olds
Czech Republic
 
  • Central Bohemian Region
Pauliš P. et al. (Kutna Hora, issue 1)
  • Karlovy Vary Region
    • Karlovy Vary District
      • Jáchymov
Hloušek et al. (2002)
Möhn et al. (12/2021)
Analyzed by and in the collection of ...
DR Congo (TL)
 
  • Haut-Katanga
    • Kambove Territory
      • Shinkolobwe
Am Min 50 (1965)
France
 
  • Occitanie
    • Hérault
      • Lodève
        • Lodève
collection BONNET Frederic
Germany
 
  • Baden-Württemberg
    • Freiburg Region
      • Ortenaukreis
        • Oberwolfach
Kolitsch (1997)
      • Waldshut
        • St Blasien
          • Menzenschwand
SEM-EDS and XRD by Joy Desor and ...
  • Saxony
    • Erzgebirgskreis
      • Schwarzenberg
        • Pöhla
Witzke (1996)
Italy
 
  • Sardinia
    • Metropolitan City of Cagliari
      • Capoterra
In the collection of Brent Thorne. ...
Japan
 
  • Okayama Prefecture
Akira Kato (1973)
  • Shimane Prefecture
    • Unnan City
      • Daito
Akira Kato (1973)
Mexico
 
  • Chihuahua
    • Aldama Municipality
      • Peña Blanca District
        • Sierra Peña Blanca
www.swri.org (2001)
Namibia
 
  • Hardap Region
    • Daweb
Bowell et al. (2017)
Pakistan
 
  • Khyber Pakhtunkhwa Province
    • Lakki Marwat District
Alia et al. (2018)
Poland
 
  • Lower Silesian Voivodeship
    • Karkonosze County
      • Kowary
        • Podgórze
Syczewski et al. (2023)
Switzerland
 
  • Valais
    • Saint-Maurice
      • Salvan
Meisser (2012)
USA
 
  • Colorado
    • Mesa County
      • Gateway Mining District
        • Beaver Mesa
ID confirmed at Carnegie Museum of ... +1 other reference
    • San Miguel County
Kampf et al. (2019)
  • Maine
    • Androscoggin County
      • Poland
King et al. (1994)
  • New Hampshire
    • Sullivan County
      • Acworth
        • South Acworth
Dana 8:258
  • New Mexico
    • Cibola County
      • Laguna subdistrict
Caldwell (2018)
  • North Carolina
Foord et al. (1997)
  • Utah
    • San Juan County
      • La Sal Creek Mining District
Carnegie Museum of Natural History ...
      • White Canyon Mining District
Min News 16:1 p1
 
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