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Wölsendorfite

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Formula:
(Pb,Ca)U
 
2
O
 
7
· 2H
 
2
O
System:OrthorhombicColour:Orange-red, bright ...
Hardness:5
Name:Named after its discovery locality, Wölsendorf, Bavaria, Germany.
This page provides mineralogical data about Wölsendorfite.

Classification of Wölsendorfite

IMA status:Valid - first described prior to 1959 (pre-IMA) - "Grandfathered"
Strunz 8th edition ID:4/H.06-40
Nickel-Strunz 10th (pending) edition ID:4.GB.30

4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
G : Uranyl Hydroxides
B : With additional cations (K, Ca, Ba, Pb, etc.); with mainly UO2(O,OH)5 pentagonal polyhedra
Dana 8th edition ID:5.4.3.2

5 : OXIDES CONTAINING URANIUM OR THORIUM
4 : AX2O7·xH2O
Hey's CIM Ref.:7.16.31

7 : Oxides and Hydroxides
16 : Oxides of U
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Type Occurrence of Wölsendorfite

Type Locality:Wölsendorf Fluorite mining District, Schwandorf, Upper Palatinate, Bavaria, Germany
Year of Discovery:1957

Physical Properties of Wölsendorfite

Colour:Orange-red, bright carmine-red
Hardness (Mohs):5

Crystallography of Wölsendorfite

Crystal System:Orthorhombic
Class (H-M):mmm (2/m 2/m 2/m) - Dipyramidal
Space Group:Cmcm {C2/m 2/c 21/m}
Cell Parameters:a = 14.131(1) Å, b = 13.885(1) Å, c = 55.969(4) Å
Ratio:a:b:c = 1.018 : 1 : 4.031
Unit Cell Volume:V 10982 ų
Z:8
Comment:Previously reported unit cell, a = 11.95, b = 13.99, c = 7.02 A, is possibly a subcell (or that of a polytype?)

Optical Data of Wölsendorfite

Type:Biaxial
RI values: nα = 2.050 nγ = 2.090
Maximum Birefringence:δ = 0.040

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:Moderate
Dispersion:r < v strong

Chemical Properties of Wölsendorfite

Formula:
(Pb,Ca)U
 
2
O
 
7
· 2H
 
2
O
Simplified for copy/paste:(Pb,Ca)U2O7·2H2O
Essential elements:H, O, Pb, U
All elements listed in formula:Ca, H, O, Pb, U

Relationship of Wölsendorfite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
4.GB.05Agrinierite
K
 
2
(Ca,Sr)(UO
 
2
)
 
3
O
 
3
(OH)
 
2
· 5H
 
2
O
4.GB.05Compreignacite
K
 
2
(UO
 
2
)
 
6
O
 
4
(OH)
 
6
· 7H
 
2
O
4.GB.05Rameauite
K
 
2
Ca(UO
 
2
)
 
6
(OH)
 
16
· H
 
2
O
4.GB.10Becquerelite
Ca(UO
 
2
)
 
6
O
 
4
(OH)
 
6
· 8H
 
2
O
4.GB.10Billietite
Ba(UO
 
2
)
 
6
O
 
4
(OH)
 
6
· 4-8H
 
2
O
4.GB.10Protasite
Ba(UO
 
2
)
 
3
O
 
3
(OH)
 
2
· 3H
 
2
O
4.GB.15Richetite
Pb(UO
 
2
)
 
4
O
 
5
· 4H
 
2
O
4.GB.20Bauranoite
Ba(UO
 
2
)
 
2
(OH)
 
6
· 1-2H
 
2
O
4.GB.20Calciouranoite
(Ca,Ba,Pb)U
 
2
O
 
7
· 5H
 
2
O
4.GB.20Metacalciouranoite
(Ca,Ba,Pb,K
 
2
)U
 
2
O
 
7
· 2H
 
2
O
4.GB.25Fourmarierite
Pb(UO
 
2
)
 
4
O
 
3
(OH)
 
4
· 4H
 
2
O
4.GB.35Masuyite
Pb(UO
 
2
)
 
3
O
 
3
(OH)
 
2
· 3H
 
2
O
4.GB.40Metavandendriesscheite
PbU
 
7
O
 
22
· nH
 
2
O n < 12
4.GB.40Vandendriesscheite
PbU
 
7
O
 
22
· 12H
 
2
O
4.GB.45Vandenbrandeite
Cu(UO
 
2
)(OH)
 
4
4.GB.50Sayrite
Pb
 
2
(UO
 
2
)
 
5
O
 
6
(OH)
 
2
· 4H
 
2
O
4.GB.55Curite
Pb
 
3
(UO
 
2
)
 
8
O
 
8
(OH)
 
6
· 3H
 
2
O
4.GB.60Iriginite
(UO
 
2
)Mo
 
2
O
 
7
· 3H
 
2
O
4.GB.65Uranosphaerite
Bi(UO
 
2
)O
 
2
(OH)
4.GB.70Holfertite
Ca
 
x
U
6+
2-x
Ti(O
 
8-x
OH
 
4x
) · 3H
 
2
O
Related Minerals - Hey's Index Grouping:

- +
7.16.1Uraninite
UO
 
2
7.16.2Schoepite
(UO
 
2
)
 
8
O
 
2
(OH)
 
12
· 12H
 
2
O
7.16.3Paraschoepite
UO
 
3
· 2H
 
2
O
7.16.4Metaschoepite
UO
 
3
· 1-2H
 
2
O
7.16.5Metastudtite
UO
 
4
· 2H
 
2
O
7.16.6Studtite
[(UO
 
2
)(O
 
2
)(H
 
2
O)
 
2
] · H
 
2
O
7.16.7Ianthinite
U
4+
 
(UO
 
2
)
 
5
O
 
7
· 10H
 
2
O
7.16.8Compreignacite
K
 
2
(UO
 
2
)
 
6
O
 
4
(OH)
 
6
· 7H
 
2
O
7.16.9Vandenbrandeite
Cu(UO
 
2
)(OH)
 
4
7.16.10Roubaultite
Cu
 
2
(UO
 
2
)
 
3
(OH)
 
10
· 5H
 
2
O
7.16.11Becquerelite
Ca(UO
 
2
)
 
6
O
 
4
(OH)
 
6
· 8H
 
2
O
7.16.12Rameauite
K
 
2
Ca(UO
 
2
)
 
6
(OH)
 
16
· H
 
2
O
7.16.13Agrinierite
K
 
2
(Ca,Sr)(UO
 
2
)
 
3
O
 
3
(OH)
 
2
· 5H
 
2
O
7.16.14Protasite
Ba(UO
 
2
)
 
3
O
 
3
(OH)
 
2
· 3H
 
2
O
7.16.15Billietite
Ba(UO
 
2
)
 
6
O
 
4
(OH)
 
6
· 4-8H
 
2
O
7.16.16Bauranoite
Ba(UO
 
2
)
 
2
(OH)
 
6
· 1-2H
 
2
O
7.16.17Metacalciouranoite
(Ca,Ba,Pb,K
 
2
)U
 
2
O
 
7
· 2H
 
2
O
7.16.18Calciouranoite
(Ca,Ba,Pb)U
 
2
O
 
7
· 5H
 
2
O
7.16.19Orthobrannerite
U
4+
 
U
6+
 
Ti
 
4
O
 
12
(OH)
 
2
7.16.20Thorutite
(Th,U,Ca)Ti
 
2
(O,OH)
 
6
7.16.21Davidite-(La)
(La,Ce)(Y,U,Fe)(Ti,Fe)
 
20
(O,OH)
 
38
7.16.22Davidite-(Ce)
(Ce,La)(Y,U,Fe)(Ti,Fe)
 
20
(O,OH)
 
38
7.16.23Brannerite
(U
4+
 
,REE,Th,Ca)(Ti,Fe
3+
 
,Nb)
 
2
(O,OH)
 
6
7.16.24Fourmarierite
Pb(UO
 
2
)
 
4
O
 
3
(OH)
 
4
· 4H
 
2
O
7.16.25Richetite
Pb(UO
 
2
)
 
4
O
 
5
· 4H
 
2
O
7.16.26Curite
Pb
 
3
(UO
 
2
)
 
8
O
 
8
(OH)
 
6
· 3H
 
2
O
7.16.27Masuyite
Pb(UO
 
2
)
 
3
O
 
3
(OH)
 
2
· 3H
 
2
O
7.16.28Vandendriesscheite
PbU
 
7
O
 
22
· 12H
 
2
O
7.16.29Metavandendriesscheite
PbU
 
7
O
 
22
· nH
 
2
O n < 12
7.16.30Sayrite
Pb
 
2
(UO
 
2
)
 
5
O
 
6
(OH)
 
2
· 4H
 
2
O
7.16.32Clarkeite
(Na,Ca,Pb)(UO
 
2
)O(OH) · 0-1H
 
2
O
7.16.33Uranosphaerite
Bi(UO
 
2
)O
 
2
(OH)

Other Names for Wölsendorfite

Synonyms:
Woelsendorfite
Other Languages:
German:Woelsendorfit
Wolsendorfit
Russian:Велсендорфит
Simplified Chinese:红铅铀矿
Spanish:Woelsendorfita
Wolsendorfita
Traditional Chinese:紅鉛鈾礦

Other Information

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

References for Wölsendorfite

Reference List:

- +
Comptes Rendus Hebdomadaires des Séances de l’ Académie des Sciences de Paris (1957): 244: 2942-2944.

American Mineralogist (1957): 42: 919.

Vochten, R. and L. Van Haverbeke (1990): Transformation of schoepite into the uranyl oxide hydrates: becquerelite, billietite and wölsendorfite: Mineralogy and Petrology: 43: 65-72.

Burns, P.C. (1999): A new sheet complex sheet of uranyl polyhedra in the structure of wölsendorfite. American Mineralogist 84: 1661-1673.

Burns, P.C. (2005): U6+ minerals and inorganic compounds: insights into an expanded structural hierarchy of crystal structures. Canadian Mineralogist: 43: 1839-1894.

Internet Links for Wölsendorfite

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  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Wölsendorfite details from Handbook of Mineralogy (PDF)
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  • Localities for Wölsendorfite

    The 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.
    (TL) indicates type locality. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
    Australia
     
    • Northern Territory
      • Alligator Rivers Region
    Brazil
     
    • Minas Gerais
      • Doce valley
        • Galiléia
    Mineralogical Record: 17: 313.; Atencio D, Carvalho F M S, Matioli P A (2004) Coutinhoite, a new thorium uranyl silicate hydrate, from Urucum Mine, Galiléia, Minas Gerais, Brazil. American Mineralogist 89, 721-724
    Canada
     
    • Northwest Territories
      • Mackenzie District
        • Great Bear Lake
    American Mineralogist (1957): 42: 919.
    Czech Republic
     
    • Bohemia (Böhmen; Boehmen)
      • Central Bohemia Region
        • Krásná Hora nad Vltavou (Schönberg)
    Litochleb, J.: Wolsendorfit z Milešova u Krásné Hory. Časopis pro mineralogii a geologii, 1986, roč. 31, č. 4, s. 436.
    Pauliš P., Kopecký S., Černý P. 2007: Uranové minerály České Republiky a jejich naleziště. 1. část. (Kutna Hora, issue 1)
          • Březové Hory ore region (Birkenberg)
            • Březové Hory deposit
    Ondrus+Hyrsl (1989)
      • Karlovy Vary Region
        • Krušné Hory Mtns (Erzgebirge)
          • Jáchymov District (St Joachimsthal)
    Lapis 2002(7/8), 63-65
    • Moravia (Mähren; Maehren)
      • Olomouc Region
        • Javorník (Jauernig)
          • Horní Hostice
    No reference listed
    Sejkora, J.: Uranové ložisko Zálesí v Rychlebských horách. Bulletin mineralogicko-petrografického oddělení Národního muzea v Praze, 1994, roč. 2, s. 105-110.
      • Vysočina Region
        • Nové Město na Moravě
    Pauliš P., Kopecký S., Černý P. 2007: Uranové minerály České Republiky a jejich naleziště. 1. část. (Kutna Hora, issue 1)
    Democratic Republic of Congo (Zaïre)
     
    • Katanga (Shaba)
      • Katanga Copper Crescent
        • Shinkolobwe
    [MinRec 20:287-288]; American Mineralogist (1957): 42: 919.
    France
     
    • Alsace
      • Haut-Rhin
        • Thur valley (Thann valley)
          • Kruth
    Hohl: "Minéraux et Mines du Massif Vosgien", Editions du Rhin (Mulhouse), 1994
    • Brittany
      • Morbihan
        • Lignol
    R. Pierrot, L. Chauris, C Laforêt and F. Pillard : "Inventaire Minéralogique de la France N° 9 : Morbihan", BRGM, 1980.
    • Burgundy
      • Saône-et-Loire
        • Issy-l'Evêque
          • Grury
    Le Règne Minéral, Hors Série IV, 1998
    • Limousin
      • Haute-Vienne
        • Compreignac
    Le Règne Minéral, Hors Série IV, 1998
    Le Règne Minéral, Hors Série IV (1998)
    Gabon
     
    • Haut-Ogooué Province
      • Franceville
    Janusz Janeczek (1999) Mineralogy and geochemistry of natural fission reactors in Gabon. Reviews in Mineralogy and Geochemistry, MSA, v. 38, p. 321-392
    Germany
     
    • Baden-Württemberg
      • Black Forest
        • Menzenschwand
    Walenta: "Die Mineralien des Schwarzwaldes", Weise (Munich), 1992
        • Schenkenzell
          • Wittichen
            • Burgfelsen
    No reference listed
            • Heubach Valley
    No reference listed
    K. Walenta: "Die Mineralien des Schwarzwaldes", Weise (Munich), 1992
    • Bavaria
      • Franconia
        • Fichtelgebirge
          • Weißenstadt
            • Großschloppen
    Weiss: "Mineralfundstellen, Deutschland West", Weise (Munich), 1990
      • Upper Palatinate
        • Schwandorf
    American Mineralogist (1957): 42: 919.
            • Wölsendorf East District (Wölsendorf - Nabburg District)
    Weiss: "Mineralfundstellen, Deutschland West", Weise (Munich), 1990
    • Saxony
      • Vogtland
        • Oelsnitz
    Gröbner, J. and Kolitsch, U. (2007): The minerals of the uranium prospect at Tirpersdorf, Vogtland. Lapis 32, 37-42; 58. (in German)
    Greenland
     
    • Tunu Province (East Greenland)
    Beddoe-Stephens, B., Secher, C. (1982): Barian Wölsendorfite from East Greenland, Mineralogical Magazine, Vol. 46, 130-132
    Italy
     
    • Trentino-Alto Adige
      • Trento Province
        • Rendena Valley
    - Ravagnani D.(1974): I giacimenti uraniferi italiani e i loro minerali. Gruppo Mineralogico Italiano Ed., Milano (pagg.188).
    Norway
     
    • Telemark
      • Tokke
        • Klauvreid
    Larsen. A.O. & Åsheim, A. (2008): Klauvreid pegmatittbrudd, del 1: Geologi og mineralogi. Norsk Bergverksmuseum Skrift. 38, 49-56.
    Russia
     
    • Eastern-Siberian Region
      • Transbaikalia (Zabaykalye)
        • Chitinskaya Oblast'
          • Krasnokamensk
    P.M. Kartashov data
    Sweden
     
    • Lappland
      • Arjeplog
    No reference listed
      • Ultevis
    No reference listed
    • Södermanland
      • Nyköping
    • Värmland
      • Torsby
    Switzerland
     
    • Wallis (Valais)
      • Le Trient Valley
        • Les Marécottes
    - Meisser, N. (2012): La minéralogie de l'uranium dans le massif des Aiguilles Rouges. Matér. Géol. Suisse, Sér. géotech. 96, 183 p.
    UK
     
    • England
      • Cornwall
        • St Just District
          • St Just
            • Botallack
              • Wheal Owles
    [Journal of the Russell Society, 6(1), 17-26 (1995)]
    USA
     
    • Colorado
      • Grand Co.
        • Wheeler Basin
    Minerals of Colorado (1997) Eckel, E. B.
    • Maine
      • Oxford Co.
        • Greenwood
    King & Foord, 1994. Mineralogy of Maine, Vol.1, p.372.
        • Newry
    King, V. and Foord, E., 1994, Mineralogy of Maine, V. 1; King, V. (ed), 2000, Mineralogy of Maine, V. 2.
    • North Carolina
      • Mitchell Co.
    Finch,Robert J. and Ewing, Rodney C. (1997) Clarkeite: New chemical and structural data: American Mineralogist,Vol.82,pg 607-619,1997
    Finch,Robert J. and Ewing,Rodney C.(1997) Clarkeite:New chemical and structural data, America Mineralogist,Vol.82 pg. 607-619,1997
        • Spruce Pine District
          • Spruce Pine
            • Greasy Creek Township
    Finch,Robert J. and Ewing,Rodney C.(1997) Clarkeite: New chemical and structural data; American Mineralogist, Vol.82, pg. 607-619,1997
      • Yancey Co.
        • Spruce Pine District
          • Celo
            • Micaville
    Finch,Robert J. and Ewing,Rodney C. (1997) Clarkeite:New chemical and structural data , American Mineralogist,Vol. 82,pg 607-619,1997
    • Pennsylvania
      • Northampton Co.
        • Forks Township
          • Easton
            • Chestnut Hill
    http://rruff.geo.arizona.edu/doclib/hom/wolsendorfite.pdf
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