Mindat Logo
Home Page Log In Message Board The Mindat Directory
Register Search Pages Mineral Chatroom The Mindat Store

Studtite

This page is currently not sponsored. Click here to sponsor this page.
Big Photo

La Dorgissière Mine, Saint-Amand-sur-Sèvre, Deux-Sèvres, Poitou-Charentes, France
© JM. Johannet

Show Studtite Photos (18)



Formula:
[(UO
 
2
)(O
 
2
)(H
 
2
O)
 
2
] · H
 
2
O
System:MonoclinicColour:Very pale yellow to ...
Name:Named after Franz Edward Studt (or Stüdt), (apparently) German geologist, who partly lived in England. For discussion and further information, see http://www.mindat.org/mesg-7-192418.html.


A rare secondary uranium mineral containing a peroxide group in its crystal structure.
May dehydrate to metastudtite.

Classification of Studtite

IMA status:Valid - first described prior to 1959 (pre-IMA) - "Grandfathered"
Strunz 8th edition ID:4/H.01-20
Nickel-Strunz 10th (pending) edition ID:4.GA.15

4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
G : Uranyl Hydroxides
A : Without additional cations
Dana 8th edition ID:5.3.1.1

5 : OXIDES CONTAINING URANIUM OR THORIUM
3 : AXO4·xH2O
Hey's CIM Ref.:7.16.6

7 : Oxides and Hydroxides
16 : Oxides of U
mindat.org URL:http://www.mindat.org/min-3815.html
Please feel free to link to this page.

Type Occurrence of Studtite

Type Locality:Shinkolobwe Mine (Kasolo Mine), Shinkolobwe, Katanga Copper Crescent, Katanga (Shaba), Democratic Republic of Congo (Zaïre)
Year of Discovery:1947

Physical Properties of Studtite

Lustre:Waxy
Diaphaneity (Transparency):Transparent, Translucent
Colour:Very pale yellow to yellow

Crystallography of Studtite

Crystal System:Monoclinic
Cell Parameters:a = 11.85Å, b = 6.78Å, c = 4.24Å
β = 93.62°
Ratio:a:b:c = 1.748 : 1 : 0.625
Unit Cell Volume:V 339.97 ų (Calculated from Unit Cell)
Morphology:Crusts and radial aggregates of flexible, fibrous crystals.
X-Ray Powder Diffraction:
d-spacingIntensity
5.93 (10)
4.27 (4)
3.40 (8)
2.96 (6)
2.23 (6)
2.02 (5)
1.970 (5b)

Optical Data of Studtite

Type:Biaxial (+)
RI values: nα = 1.545 nβ = 1.555 nγ = 1.680
Maximum Birefringence:δ = 0.135

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:Low
Dispersion:none

Chemical Properties of Studtite

Formula:
[(UO
 
2
)(O
 
2
)(H
 
2
O)
 
2
] · H
 
2
O
Idealised Formula:
UO
 
4
 · 4H
 
2
O
Essential elements:H, O, U
All elements listed in formula:H, O, U

Relationship of Studtite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
4.GA.05Metaschoepite
UO
 
3
 · 1-2H
 
2
O
4.GA.05Paraschoepite
UO
 
3
 · 2H
 
2
O
4.GA.05Schoepite
(UO
 
2
)
 
8
O
 
2
(OH)
 
12
 · 12H
 
2
O
4.GA.05Paulscherrerite
UO
 
2
(OH)
 
2
4.GA.10Ianthinite
U
4+
 
(UO
 
2
)
 
5
O
 
7
 · 10H
 
2
O
4.GA.15Metastudtite
UO
 
4
 · 2H
 
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
7.16.7Ianthinite
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
7.16.31Wölsendorfite
(Pb,Ca)U
 
2
O
 
7
 · 2H
 
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 Studtite

Other Languages:
German:Studtit
Russian:Студтит
Spanish:Studtita

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 Studtite

Reference List:

- +
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 Studtite

Search Engines:
  • Look for Studtite on Google
  • Look for Studtite images on Google
    • External Links:
  • Look for Studtite on Webmineral
  • Look for Studtite on Athena Mineralogy
  • Look for Studtite on Wikipedia
  • Look for Studtite on Mineralien Atlas
  • Raman and XRD data at RRUFF project[Link Broken?]
  • American Mineralogist Crystal Structure Database[Link Broken?]
  • Studtite details from Handbook of Mineralogy (PDF)
    • Mineral Dealers:
  • Fine Minerals from Weinrich Minerals, Inc.
  • Search for Studtite from all mineral dealers at minfind.com
  • Pricedownminerals.com - Reverse Auctions and Shop
  • Visit the Pueblo Gem and Mineral show, Tucson 2012
  • Search for minerals at Heliodor
  • Buy RARE Minerals from Rocks of Africa
  • webminerals
  • High-end worldwide specimens & outstanding customer service
  • Wilensky Fine Minerals
  • The Arkenstone - Fine Minerals
  • Buy from David K Joyce minerals
  • DAKOTA MATRIX offers Cabinet and Rare Species from Worldwide Localities.
    • Jobs:
  • Mining & Geology Jobs

    • Localities for Studtite

    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.
    Hide Locality List
    (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.
    Austria
     
    • Salzburg
      • St Johann im Pongau
    		Paar, W. & Ruscha, S. (1978): Karinthin 78, 23-29.
    A. Strasser: Die Minerale Salzburgs, 1989
    Brazil
     
    • Minas Gerais
      • Doce valley
        • Divino das Laranjeiras
          • Linópolis
    		Tony Nikischer
    China
     
    • Hunan Province
    		Aizhen Wang (1992): Acta Mineralogica Sinica 12(1), 78-82
    • Yunnan Province
      • Baoshan Prefecture
        • Tengchong Co.
    		Anthony, J.W. et al.: Handbook of Mineralogy
      • Dehong Autonomous Prefecture
        • Yingjiang Co.
          • Tongbiguan
    Czech Republic
     
    • Bohemia (Böhmen; Boehmen)
      • Karlovy Vary Region
        • Mariánské Lázně (Marienbad)
    		Pauliš P., Kopecký S., Černý P. 2007: Uranové minerály České Republiky a jejich naleziště. 1. část. (Kutna Hora, issue 1)
    • Moravia (Mähren; Maehren)
      • Olomouc Region
        • Javorník
          • Horní Hostice
    		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.
    Democratic Republic of Congo (Zaïre)
     
    • Katanga (Shaba)
      • Katanga Copper Crescent
        • Shinkolobwe
    		Am Min 59 (1974), 166; Čejka, J., Sejkora, J. and Deliens, M. (1996): New data on studtite, UO4•4H2O, from Shinkolobwe, Shaba, Zaire. N. Jb. Mineral. Mh. 1996, 125-134.
        • Swambo
    • Sud-Kivu
      • Lusungu River District
    France
     
    • Languedoc-Roussillon
      • Hérault
        • Lodève
    		[Le Règne Minéral 1997, 13, p.5-18]
    • Limousin
      • Corrèze
        • Davignac
    • Poitou-Charentes
      • Deux-Sèvres
        • 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
    Germany
     
    • Baden-Württemberg
      • Black Forest
        • Menzenschwand
    		No reference listed
        • Schenkenzell
          • Wittichen
    		Markl, G. & Slotta, C. (2011): Die Uranmineralien des Lagerstättenreviers Wittichen im mittleren Schwarzwald. Lapis 36 (3), 25-37; 54 (in German).
        • Wolfach
          • Oberwolfach
            • Rankach valley
    		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.
    Norway
     
    • Buskerud
      • Krødsherad
        • Krøderen Lake
    		Kristiansen, R. (1990): Nye sekundære uranmineraler fra Bjertnes, Krødsherad. STEIN 17(1), 25-28
    Mineral and/or Locality
    Search Google
     
    Copyright © Jolyon Ralph and Ida Chau 1993-2011. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them. Further information contact the Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of hundreds of members and supporters. Mindat does not offer minerals for sale. If you would like to add information to improve the quality of our database, then click here to register.
    Current server date and time: 26th Sep 2011 00:36:21
    Mineral and Locality Search
    Mineral:
    and/or Locality:
    Options
    Fade toolbar when not in focusFix toolbar to bottom of page
    Hide Social Media Links
    Slideshow frame delay seconds