SUPPORT US. Covid-19 has significantly affected our fundraising. Please help!
Log InRegister
Home PageAbout MindatThe Mindat ManualHistory of MindatCopyright StatusWho We AreContact UsAdvertise on Mindat
Donate to MindatCorporate SponsorshipSponsor a PageSponsored PagesMindat AdvertisersAdvertise on Mindat
Learning CenterWhat is a mineral?The most common minerals on earthInformation for EducatorsMindat ArticlesThe ElementsBooks & Magazines
Minerals by PropertiesMinerals by ChemistryAdvanced Locality SearchRandom MineralRandom LocalitySearch by minIDLocalities Near MeSearch ArticlesSearch GlossaryMore Search Options
Search For:
Mineral Name:
Locality Name:
Keyword(s):
 
The Mindat ManualAdd a New PhotoRate PhotosLocality Edit ReportCoordinate Completion ReportAdd Glossary Item
Mining CompaniesStatisticsUsersMineral MuseumsMineral Shows & EventsThe Mindat DirectoryDevice SettingsThe Mineral Quiz
Photo SearchPhoto GalleriesSearch by ColorNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day GalleryMineral Photography

Studtite

This page is currently not sponsored. Click here to sponsor this page.
Hide all sections | Show all sections

About StudtiteHide

Formula:
[(UO2)(O2)(H2O)2] · H2O
Colour:
Very pale yellow to yellow
Lustre:
Waxy
Crystal System:
Monoclinic
Name:
Named in honor of Franz Edward Studt (or Stüdt) (30 November 1873, London, England, UK - 3 July 1953, Holborn, England, UK), geologist for Tanganyika Concessions Ltd. He prepared an important geological map of Katanga, published in 1913.

Dinah Pantic writes in http://www.mindat.org/mesg-7-192418.html. "Frank Edward Studt was my grandfather. He was trained as a metallurgist and graduated from Imperial College in London about 1898. He was English and his parents originally from Germany. After graduating he worked in the Belgian Congo for about 20 years for a Belgian company. I have many of his original diaries from this time."
A rare secondary uranium mineral containing a peroxide group in its crystal structure.
May dehydrate to metastudtite.


Classification of StudtiteHide

Approved, 'Grandfathered' (first described prior to 1959)
4.GA.15

4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
G : Uranyl Hydroxides
A : Without additional cations
5.3.1.1

5 : OXIDES CONTAINING URANIUM OR THORIUM
3 : AXO4·xH2O
7.16.6

7 : Oxides and Hydroxides
16 : Oxides of U

Physical Properties of StudtiteHide

Transparency:
Transparent, Translucent
Colour:
Very pale yellow to yellow

Optical Data of StudtiteHide

Type:
Biaxial (+)
RI values:
nα = 1.545 nβ = 1.555 nγ = 1.680
Max Birefringence:
δ = 0.135
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Low
Dispersion:
none

Chemical Properties of StudtiteHide

Formula:
[(UO2)(O2)(H2O)2] · H2O
IMA Formula:
(UO2)(O2)(H2O)2 · 2H2O
Idealised Formula:
UO4 · 4H2O

Crystallography of StudtiteHide

Crystal System:
Monoclinic
Cell Parameters:
a = 11.85 Å, b = 6.78 Å, c = 4.24 Å
β = 93.62°
Ratio:
a:b:c = 1.748 : 1 : 0.625
Unit Cell V:
339.97 ų (Calculated from Unit Cell)
Morphology:
Crusts and radial aggregates of flexible, fibrous crystals.

Crystal StructureHide

Load
Unit Cell | Unit Cell Packed
2x2x2 | 3x3x3 | 4x4x4
Show
Big Balls | Small Balls | Just Balls | Spacefill
Polyhedra Off | Si Polyhedra | All Polyhedra
Remove metal-metal sticks
Display Options
Black Background | White Background
Perspective On | Perspective Off
2D | Stereo | Red-Blue | Red-Cyan
View
CIF File    Best | x | y | z | a | b | c
Rotation
Stop | Start
Labels
Console Off | On | Grey | Yellow
IDSpeciesReferenceLinkYearLocalityPressure (GPa)Temp (K)
0003153StudtiteBurns P C, Hughes K-A (2003) Studtite, [(UO2)(O2)(H2O)2](H2O)2: The first structure of a peroxide mineral American Mineralogist 88 1165-116820030293
CIF Raw Data - click here to close

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
5.93 Å(10)
4.27 Å(4)
3.40 Å(8)
2.96 Å(6)
2.23 Å(6)
2.02 Å(5)
1.970 Å(5b)

Type Occurrence of StudtiteHide

Other Language Names for StudtiteHide

German:Studtit
Spanish:Studtita

Common AssociatesHide

Associated Minerals Based on Photo Data:
9 photos of Studtite associated with UranophaneCa(UO2)2(SiO3OH)2 · 5H2O
7 photos of Studtite associated with FourmarieritePb(UO2)4O3(OH)4 · 4H2O
7 photos of Studtite associated with UraniniteUO2
6 photos of Studtite associated with PhosphuranyliteKCa(H3O)3(UO2)7(PO4)4O4 · 8H2O
4 photos of Studtite associated with BecquereliteCa(UO2)6O4(OH)6 · 8H2O
4 photos of Studtite associated with Lepersonnite-(Gd)Ca(Gd,Dy)2(UO2)24(SiO4)4(CO3)8(OH)24 · 48H2O
3 photos of Studtite associated with BaryteBaSO4
3 photos of Studtite associated with Rutherfordine(UO2)CO3
2 photos of Studtite associated with Uranophane-βCa(UO2)2(SiO3OH)2 · 5H2O
2 photos of Studtite associated with CuritePb3(H2O)2[(UO2)4O4(OH)3]2

Related Minerals - Nickel-Strunz GroupingHide

4.GA.05Metaschoepite(UO2)8O2(OH)12 · 10H2OOrth. mmm (2/m 2/m 2/m) : Pbcn
4.GA.05ParaschoepiteUO3 · 2H2OOrth.
4.GA.05Schoepite(UO2)8O2(OH)12 · 12H2OOrth. mmm (2/m 2/m 2/m) : Pbca
4.GA.10IanthiniteU4+(UO2)5O7 · 10H2OOrth. mm2 : Amm2
4.GA.15MetastudtiteUO4 · 2H2OOrth. mmm (2/m 2/m 2/m) : Pnma
4.GA.20PaulscherreriteUO2(OH)2Mon.

Related Minerals - Dana Grouping (8th Ed.)Hide

5.3.1.2MetastudtiteUO4 · 2H2OOrth. mmm (2/m 2/m 2/m) : Pnma

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

7.16.1UraniniteUO2Iso. m3m (4/m 3 2/m) : Fm3m
7.16.2Schoepite(UO2)8O2(OH)12 · 12H2OOrth. mmm (2/m 2/m 2/m) : Pbca
7.16.3ParaschoepiteUO3 · 2H2OOrth.
7.16.4Metaschoepite(UO2)8O2(OH)12 · 10H2OOrth. mmm (2/m 2/m 2/m) : Pbcn
7.16.5MetastudtiteUO4 · 2H2OOrth. mmm (2/m 2/m 2/m) : Pnma
7.16.7IanthiniteU4+(UO2)5O7 · 10H2OOrth. mm2 : Amm2
7.16.8CompreignaciteK2(UO2)6O4(OH)6 · 7H2OOrth.
7.16.9VandenbrandeiteCu(UO2)(OH)4Tric. 1 : P1
7.16.10RoubaultiteCu2(UO2)3(CO3)2O2(OH)2 · 4H2OTric. 1 : P1
7.16.11BecquereliteCa(UO2)6O4(OH)6 · 8H2OOrth. mm2 : Pna21
7.16.12RameauiteK2Ca(UO2)6O6(OH)4 · 6H2OMon. m : Bb
7.16.13AgrinieriteK2(Ca,Sr)[(UO2)3O3(OH)2]2 · 5H2OOrth.
7.16.14ProtasiteBa(UO2)3O3(OH)2 · 3H2OMon.
7.16.15BillietiteBa(UO2)6O4(OH)6 · 4-8H2OOrth. mm2
7.16.16BauranoiteBa(UO2)2(OH)6 · 1-2H2O
7.16.17Metacalciouranoite(Ca,Ba,Pb,K2)U2O7 · 2H2O
7.16.18Calciouranoite(Ca,Ba,Pb)U2O7 · 5H2O
7.16.19OrthobranneriteU4+U6+Ti4O12(OH)2Orth.
7.16.20Thorutite(Th,U,Ca)Ti2(O,OH)6Mon.
7.16.21Davidite-(La)La(Y,U)Fe2(Ti,Fe,Cr,V)18(O,OH,F)38Trig.
7.16.22Davidite-(Ce)Ce(Y,U)Fe2(Ti,Fe,Cr,V)18(O,OH,F)38Trig. 3 : R3
7.16.23BranneriteUTi2O6Mon. 2/m : B2/m
7.16.24FourmarieritePb(UO2)4O3(OH)4 · 4H2OOrth.
7.16.25Richetite(Fe3+,Mg)Pb 8.6(UO2)36O36(OH)24 · 41H2O Tric.
7.16.26CuritePb3(H2O)2[(UO2)4O4(OH)3]2Orth. mmm (2/m 2/m 2/m) : Pnma
7.16.27MasuyitePb(UO2)3O3(OH)2 · 3H2OOrth.
7.16.28VandendriesscheitePbU7O22 · 12H2OOrth. mmm (2/m 2/m 2/m) : Pbca
7.16.29MetavandendriesscheitePbU7O22 · nH2O n < 12Orth.
7.16.30SayritePb2(UO2)5O6(OH)2 · 4H2OMon. 2/m
7.16.31WölsendorfitePb7(UO2)14O19(OH)4 · 12H2OOrth. mmm (2/m 2/m 2/m) : Cmcm
7.16.32Clarkeite(Na,Ca,Pb)(UO2)O(OH) · 0-1H2OTrig.
7.16.33UranosphaeriteBi(UO2)O2(OH)Mon. 2/m

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.

References for StudtiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Vaes (1947) Bulletin société belge de Géologie, de paleontology et d’hydrologie, Brussels: 70: B 212.
Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: Halides, Nitrates, Borates, Carbonates, Sulfates, Phosphates, Arsenates, Tungstates, Molybdates, Etc. John Wiley and Sons, Inc., New York, 7th edition, revised and enlarged: 275.
Walenta, K. (1974): On studtite and its composition. Amer. Mineral., 59, 166–171.
American Mineralogist (1974): 59: 166-171.
Čejka, J., Sejkora, J. and Deliens, M. (1996): New data on studtite, UO4•4H2O, from Shinkolobwe, Shaba, Zaire. Neues Jahrbuch für Mineralogie, Monatshefte (1996): 125-134.
Burns, P.C. and Hughes, K.-A. (2003) Studtite, [(UO2)(O2)(H2O)2]H2O: the first structure of a peroxide mineral. American Mineralogist: 88: 1165-1168.
Burns, P.C. (2005) U 6+ minerals and inorganic compounds: insights into an expanded structural hierarchy of crystal structures. Canadian Mineralogist: 43: 1839-1894.

Internet Links for StudtiteHide

Localities for StudtiteHide

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.

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for 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 (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
Austria
 
  • Salzburg
    • St. Johann im Pongau District
      • Mühlbach am Hochkönig
Paar, W. & Ruscha, S. (1978): Karinthin 78, 23-29.
A. Strasser: Die Minerale Salzburgs, 1989
Brazil
 
  • Minas Gerais
    • Divino das Laranjeiras
      • Linópolis
Tony Nikischer
China
 
  • Hunan
Aizhen Wang (1992): Acta Mineralogica Sinica 12(1), 78-82
  • Yunnan
    • Baoshan
      • Tengchong County
Anthony, J.W. et al.: Handbook of Mineralogy
    • Dehong
      • Yingjiang County
        • Tongbiguan
Chen Zhangru, Huang Yuzhu, and Gu Xiaofa (1990): A new uranium mineral - Yingjiangite. Acta Mineralogica Sinica 10(2), 102-105.
Czech Republic
 
  • Central Bohemian Region
    • Příbram District
      • Háje
Plášil J., Sejkora J., Čejka J., Škácha P., Goliáš V., Pavlíček R., Hofman P. (2008): Supergenní mineralizace z haldy šachty č. 16 Příbram - Háje. - Bull. mineral.-petrolog. Odd. Nár. Muz. (Praha) 16/1, 43-55. ISSN: 1211-0329
Plášil J., Sejkora J., Čejka J., Škácha P., Goliáš V., Pavlíček R., Hofman P. (2008): Supergenní mineralizace z haldy šachty č. 16 Příbram - Háje. - Bull. mineral.-petrolog. Odd. Nár. Muz. (Praha) 16/1, 43-55. ISSN: 1211-0329.
  • Karlovy Vary Region
    • Cheb District
      • Mariánské Lázně
Pauliš P., Kopecký S., Černý P. 2007: Uranové minerály České Republiky a jejich naleziště. 1. část. (Kutna Hora, issue 1)
    • Karlovy Vary District
Collected by Jan Hloušek, identified by J. Plasil; publication in due
  • Olomouc Region
    • Jeseník District
      • Javorník
        • Horní Hoštice
Pauliš, P., Novák, F., Ševců, J.: Sekundární minerály z uranového ložiska Jelení vrch u Horních Hoštic v Rychlebských horách. Acta Musei Moraviae, Scientiae geologicae, 2004, roč. 89, s. 121 - 138.
DR Congo (TL)
 
  • Haut-Katanga
    • Kambove District
      • Shinkolobwe
Walenta, Kurt (1974) On studtite and its composition. American Mineralogist, 59(1-2), 166-171.; Čejka, J., Sejkora, J., Deliens, M. (1996) New data on studtite, UO4•4H2O, from Shinkolobwe, Shaba, Zaire. Neues Jahrbuch für Mineralogie, Monatshefte 1996, 125-134.; Deliens, M. (1996) Overzicht van de mineralogie van de koper-, kobalt- en uraniumvoorkomens in Zuid-Shaba (Zaïre). Pages 35-49 in: Schatten der Aarde. Van mineraal tot juweel. Tentoonstelling in de abdij Saint-Gérard de Brogne van 27 april tot 27 oktober 1996. Catalogus opgemaakt onder de leiding van R. Warin, AGAB en P. Van hee, MKA (in Dutch).
  • Lualaba
    • Kolwezi mining district
      • Kamoto
Deliens, Michel (1992): Occurrence de roubaultite à Kamoto (Shaba, Zaïre). Bulletin de l'Institut Royal des Sciences Naturelles de Belgique. Sciences de la Terre. 58, 295-296.
      • Kolwezi
Wilson, W. E. (2018) The Musonoi mine, Kolwezi District, Lualaba Province, Democratic Republic of the Congo. Mineralogical Record 49:236-304
  • South Kivu
    • Shabunda Territory
Fleischer M, Cabri L J, Chao G Y, Mandarino J A, Pabst A (1982) New mineral names, American Mineralogist 67, 1074-1082
France
 
  • Nouvelle-Aquitaine
    • Corrèze
      • Ussel
        • Davignac
    • Deux-Sèvres
      • Bressuire
        • Mauléon
          • La Chapelle-Largeau
Le Règne Minéral, Hors Série IV, 1998 & Le Cahier des micromonteurs, 2002, N°75, pp 8-25
          • Le Temple
Le Cahier des micromonteurs, 2002, N°75, pp 8-25
        • Saint-Amand-sur-Sèvre
Le Cahier des micromonteurs, 2002, N°75, pp 8-25
  • Occitanie
    • Aveyron
      • Rodez
        • Entraygues-sur-Truyère
Lackner, E. & Desor, J. (11/2020) SEM-EDS & Raman spectroscopy
    • Hérault
      • Lodève
        • Le Puech
Caubel, A. (1997) Minéralogie du gisement d'uranium de Rabejac (Hérault). Le Règne Minéral: 13: 5-18.
Germany
 
  • Baden-Württemberg
    • Freiburg Region
      • Ortenaukreis
        • Wolfach
          • Oberwolfach
Walenta, K. (1992): Die Mineralien des Schwarzwaldes. Chr. Weise Verlag, München, 336 pp. (in German); WALENTA, K. (1995): Neue Mineralfunde von der Grube Clara. 6. Folge, 1. Teil. - Lapis 20 (5), 33-38.
      • Rottweil
        • Schenkenzell
          • Wittichen
Markl, G. & Slotta, C. (2011): Die Uranmineralien des Lagerstättenreviers Wittichen im mittleren Schwarzwald. Lapis 36 (3), 25-37; 54 (in German).
      • Waldshut
        • St Blasien
          • Menzenschwand
No reference listed
  • Bavaria
    • Upper Palatinate
      • Schwandorf District
        • Schwarzach bei Nabburg
          • Wölsendorf
Collection Elmar Lackner. Analytical work by Joy Desor in 2017
  • Saxony
    • Erzgebirgskreis
      • Annaberg-Buchholz
        • Kleinrückerswalde
Stolze, S., Desor, J. & Möhn, G. (10/2020) SEM-EDS & Raman spectroscopy
Italy
 
  • Lombardy
    • Bergamo Province
      • Valgoglio
Borrelli, A., Callegari, A.M., Bolocchi, M., Ciriotti, M.E. (2013): Studtite: primo ritrovamento italiano. Micro, 2/2013, 88-92
Norway
 
  • Buskerud
    • Krødsherad
Kristiansen, R. (1990): Nye sekundære uranmineraler fra Bjertnes, Krødsherad. STEIN 17(1), 25-28
  • Nordland
    • Hamarøy
      • Drag
        • Eivollen
Husdal, T. (2019) Nyfunn av mineraler fra Tysfjord-pegmatittene, Nordland. Norsk Mineralsymposium 2019: 31-46
Switzerland
 
  • Valais
    • Saint-Maurice
      • Salvan
        • Les Marécottes
          • La Creusaz
- Meisser, N. (2012): La minéralogie de l'uranium dans le massif des Aiguilles Rouges. Matér. Géol. Suisse, Sér. géotech. 96, 183 p.
Ukraine
 
  • Kiev Oblast
    • Ivankiv Raion
Burakov, B.E., Strykanova, E.E., Anderson, E.B. (): Secondary Uranium Minerals on the Surface of Chernobyl “Lava”. MRS Proceedings: 465; : http://dx.doi.org/10.1557/PROC-465-1309
 
Mineral and/or Locality  
Mindat Discussions Facebook Logo Instagram Logo Discord Logo
Mindat.org is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization. Public Relations by Blytheweigh.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2021, except where stated. Most political location boundaries are © OpenStreetMap contributors. Mindat.org relies on the contributions of thousands of members and supporters.
Privacy Policy - Terms & Conditions - Contact Us - Report a bug/vulnerability Current server date and time: January 27, 2021 01:34:41 Page generated: December 19, 2020 11:30:27
Go to top of page