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Curite

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Formula:
Pb
 
3
(UO
 
2
)
 
8
O
 
8
(OH)
 
6
· 3H
 
2
O
System:OrthorhombicColour:Deep to light ...
Hardness:4 - 5
Name:
After Pierre Curie (1859-1906), French physicist, famous for his research with his wife, Marie Sklodowska-Curie, on radioactivity.
This page provides mineralogical data about Curite.

Classification of Curite

IMA status:Valid - first described prior to 1959 (pre-IMA) - "Grandfathered"
Strunz 8th edition ID:4/H.07-50
Nickel-Strunz 10th (pending) edition ID:4.GB.55

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:5.9.3.1

5 : OXIDES CONTAINING URANIUM OR THORIUM
9 : Miscellaneous
Hey's CIM Ref.:7.16.26

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

Type Locality:Shinkolobwe Mine (Kasolo Mine), Shinkolobwe, Katanga Copper Crescent, Katanga (Shaba), Democratic Republic of Congo (Zaïre)
Place of Conservation of Type Material:Natural History Museum, Paris France
Year of Discovery:1921

Occurrences of Curite

Geological Setting:Secondary mineral formed by the alteration of uraninite

Physical Properties of Curite

Lustre:Adamantine
Diaphaneity (Transparency):Transparent, Translucent
Colour:Deep to light red-orange, orange, scarlet, yellow
Streak:Orange
Hardness (Mohs):4 - 5
Tenacity:Brittle
Cleavage:Imperfect/Fair
On {100}
Density (measured):6.98 - 7.4 g/cm3
Density (calculated):7.37 g/cm3

Crystallography of Curite

Crystal System:Orthorhombic
Class (H-M):mmm (2/m 2/m 2/m) - Dipyramidal
Space Group:Pnma
Space Group Setting:Pnma
Cell Parameters:a = 12.551Å, b = 7.008Å, c = 6.983Å
Ratio:a:b:c = 1.791 : 1 : 0.996
Unit Cell Volume:V 614.21 ų (Calculated from Unit Cell)
Z:2
Morphology:Crystals prismatic [001] and striated [001]. Massive. In aggregates of fine needles or saccharoidal. Compact earthy.

Optical Data of Curite

Type:Biaxial (-)
RI values: nα = 2.060 nβ = 2.110 nγ = 2.150
2V:Measured: 70° , Calculated: 80°
Maximum Birefringence:δ = 0.090

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:Very High
Dispersion:r < v strong
Pleochroism:Visible
Comments:X = b = pale yellow
Y = a = light red-orange
Z = c = dark red-orange

Chemical Properties of Curite

Formula:
Pb
 
3
(UO
 
2
)
 
8
O
 
8
(OH)
 
6
· 3H
 
2
O
Simplified for copy/paste:Pb3(UO2)8O8(OH)6·3H2O
Essential elements:H, O, Pb, U
All elements listed in formula:H, O, Pb, U

Relationship of Curite 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.30Wölsendorfite
(Pb,Ca)U
 
2
O
 
7
· 2H
 
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.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
7.16.27Masuyite
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 Curite

Other Languages:
German:Curit
Russian:Кюрит
Spanish:Curita
Varieties:
Thorian Curite

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 Curite

Reference List:

- +
Schoep, A. (1921): C.R.: 173: 1186.

American Mineralogist (1922): 7: 128.

Schoep, A. (1930), Ann. us. Congo belge: 1(2), er. 1: 22.

Palache, C. (1934), American Mineralogist: 19: 309.

Palache, Charles, Harry Berman & Clifford Frondel (1944), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana Yale University 1837-1892, Volume I: Elements, Sulfides, Sulfosalts, Oxides. John Wiley and Sons, Inc., New York. 7th edition, revised and enlarged: 629-631.

Canadian Mineralogist (2000): 38: 727-735.

Tschermaks Mineralogische und Petrographische Mitteilungen: 26: 279-292.

Li, Y. and P.C. Burns (2000b), Investigations of crystal-chemical variation in lead uranyl oxide hydrates. I. Curite: Canadian Mineralogist: 38: 727-735.

Kubatko, Karrie-Ann, Katheryn Helean, Alexandra Navrotsky, and Peter C. Burns (2006), Thermodynamics of uranyl minerals: Enthalpies of formation of uranyl oxide hydrates: American Mineralogist: 91: 658-666.

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 Curite

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  • Localities for Curite

    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
    Waite & Payne (1993) Uranium Transport in the subsurface environment - Koongara - a case study in Metals in Groundwater H. Allen et al ed. CRC Press
    Econ Geol (1987)82:1152-1168; Angela Giblin (2004) Alligator Rivers Uranium deposits (Koongarra, Nabarlek and Ranger One) Northern Territory. CRC LEME
    Frost, Ray L. and Cejka, Jiri and Ayoko, Godwin A. and Weier, Matt L. (2007) Vibrational spectroscopic study of hydrated uranyl oxide: curite. Polyhedron 26(14):pp. 3724-3730.
        • South Alligator River
    Henry, D.A., Pogson, R.E. and Williams, P.A. (2005) Threadgoldite from the South Alligator Valley uranium field, Northern Territory, Australia: second world occurrence. , Australian Journal of Mineralogy, 11, 7-11
    Canada
     
    • Northwest Territories
      • Mackenzie District
        • Great Bear Lake
    Rod Tyson, The Port Radium District, Northwest Territories, Canada Mineralogical Record (1989) vol.20. #3, pp 201-208 .
    • Ontario
      • Haliburton Co.
        • Cardiff Township
    Trail,R.J. 1980, Catalogue of Canadian Minerals, GSC Paper 80-18
    Reiner Mielke 2013
    • Saskatchewan
      • Lac La Ronge
    Sabina, A.P. (1972) Rocks & minerals for the collector: La Ronge - Creighton, Saskatchewan, Flin Flon, Thompson, Manitoba. GSC paper 71-27, 65.
    Czech Republic
     
    • Bohemia (Böhmen; Boehmen)
      • Plzeň Region
        • Tachov
    Pauliš P., Kopecký S., Černý P. 2007: Uranové minerály České Republiky a jejich naleziště. 1. část. (Kutna Hora, issue 1)
    • Moravia (Mähren; Maehren)
      • Vysočina Region
        • Rožná deposit
    Petr Pauliš
        • Žďár nad Sázavou
    Mineralienwelt 1993(1), 13
    Democratic Republic of Congo (Zaïre)
     
    • Katanga (Shaba)
      • Katanga Copper Crescent
        • Kolwezi District
          • Kamoto
          • Kolwezi
    No reference listed
        • Lubumbashi (Elizabethville)
        • Shinkolobwe
    C. R. Acad. Sci. Paris (1921). 173, 1186-1187.
        • Swambo
    Can Min 38:727-735
    Egypt
     
    • Red Sea Governorate
      • Northeastern Desert
    Finland
     
    • Lapland Region
    Ilkka Mikkola collection
    France
     
    • Alsace
      • Haut-Rhin
        • Thur valley (Thann valley)
          • Kruth
    Le Règne Minéral, Hors Série IV (1998)
    • Auvergne
      • Puy-de-Dôme
        • Thiers
          • Saint-Rémy-sur-Durolle
    J. Chervet and G. Branche : "Contribution à l'Etude des Minéraux Secondaires d'Uranium Français", ENSG, Nancy, 1955
    • Brittany
      • Morbihan
        • Lignol
    Le Règne Minéral, Hors Série IV, 1998
        • Pontivy
          • Guern
    Le Règne Minéral, Hors Série IV (1998)
    • Limousin
      • Creuse
        • Soumans
          • Montebras
    Patureau, J., Chiappero, P-J. & Lebocey, J. (2011): Mines et minéraux de Montebras, Soumans, Creuse. Le Règne Minéral. 99, 5-33
      • Haute-Vienne
        • Compreignac
    Le Règne Minéral, Hors Série IV (1998)
        • Saint-Sylvestre
    Le Règne Minéral, Hors Série IV, 1998
    Germany
     
    • Baden-Württemberg
      • Black Forest
        • Menzenschwand
    Walenta: "Die Mineralien des Schwarzwaldes", Weise (Munich), 1992
        • Schenkenzell
          • Wittichen
            • Böckelsbach valley
    Markl, G. & Slotta, C. (2011): Die Uranmineralien des Lagerstättenreviers Wittichen im mittleren Schwarzwald. Lapis 36 (3), 25-37; 54 (in German).
    • Bavaria
      • Upper Palatinate
        • Mähring
          • Uranium deposit
    Weiss: "Mineralfundstellen, Deutschland West", 1990
        • Wölsendorf Fluorite Mining District
    Weiss: "Mineralfundstellen, Deutschland West", Weise (Munich), 1990
    • Rhineland-Palatinate
      • Hunsrück
        • Birkenfeld
          • Ellweiler
    Aufschluss 69/(7+8), Lapis 79/(7+8)
    • Saxony
      • Erzgebirge
        • Johanngeorgenstadt District
    Wittern: "Mineralfundorte in Deutschland", 2001
    Lapis 30(7/8):78-80 (2005)
      • Vogtland
        • Oelsnitz
    Gröbner, J. and Kolitsch, U. (2007): The minerals of the uranium prospect at Tirpersdorf, Vogtland. Lapis 32, 37-42; 58. (in German)
    Hungary
     
    • Baranya Co.
      • Mecsek Mtns
    Koch: Minerals of Hungary, 1985
    • Heves Co.
      • Bükk Mtns
        • Nagyvisnyó
    GEODA 2004
    Italy
     
    • Lombardy
      • Bergamo Province
        • Seriana Valley
          • Valgoglio
    Daniele Ravagnani - I giacimenti uraniferi italiani - Gruppo Min. Lombardo - Museo Civico di Storia Naturale di Milani, 1974
    • 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).
    Madagascar
     
    • Fianarantsoa Province
      • Matsiatra Region
        • Ampandramaika-Malakialina Pegmatite Field
          • Ikalamavony District
            • Fitampito Commune
              • Andanoa
    Behier, J. (1960): Contribution á la Minéralogie de Madagascar. Annales Géologiques de Madagascar XXIX, Tananarive, 78p.
    Behier, J. (1960): Contribution á la mineralogie de Madagascar. Annales Géologiques de Madagascar XXIX, Tananarive, p 32
    Behier, J. (1960): Contribution á la mineralogie de Madagascar. Annales Géologiques de Madagascar XXIX, Tananarive, p.32
    Behier, J. (1960): Travaux mineralogiques. In Besaire, H. (ed): Rapport Annuel du Service Geologique pour 1960. Republique Madagascar, Tananarive. 181-199
    Norway
     
    • Aust-Agder
      • Gjerstad
    Neumann, H. (1985): Norges Mineraler. Norges geologiske Undersøkelse Skrifter 68, p 90
    • Rogaland
      • Vindafjord
        • Vats
          • Øvre Vats
    Knut Edvard Larsen collection # MM-5380
    • 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
    Pavel M. Kartashov analytical data 2012
    • Northern Region
      • Karelia Republic
        • Northern Karelia
    P.M. Kartashov data
    South Africa
     
    • Northern Cape Province
      • Namakwa District (Namaqualand)
    Minerals of South Africa
    USA
     
    • Colorado
      • Grand Co.
        • Wheeler Basin
    Minerals of Colorado (1997) Eckels, E. B.
      • Park Co.
        • Lake George (Badger Flats) Area
    Minerals of Colorado (1997) Eckels, E. B.
    • Montana
      • Silver Bow Co.
    USGS Bull 574
    • New Hampshire
      • Cheshire Co.
        • Marlow
    Personal collection and XRD analysis by Fred E Davis
      • Grafton Co.
        • Grafton
    Seaman, David (1976) Pegmatite Minerals of the World
    • New Mexico
      • McKinley Co.
        • Grants District
    New Mexico Bureau of Mines and Mineral Resources, Mineral Museum no. 13134
    Mineral and/or Locality  
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