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Cuprosklodowskite

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Formula:
Cu(UO
 
2
)
 
2
[HSiO
 
4
]
 
2
· 6H
 
2
O
System:TriclinicColour:Yellowish green to grass ...
Hardness:4
Name:Mistaken belief that the mineral was the copper analogue of Sklodowskite.
This page provides mineralogical data about Cuprosklodowskite.

Classification of Cuprosklodowskite

IMA status:Valid - first described prior to 1959 (pre-IMA) - "Grandfathered"
Strunz 8th edition ID:8/B.34-20
Nickel-Strunz 10th (pending) edition ID:9.AK.10

9 : SILICATES (Germanates)
A : Nesosilicates
K : Uranyl neso- and polysilicates
Dana 8th edition ID:53.3.1.4

53 : NESOSILICATES Insular SiO4 Groups and Other Anions or Complex Cations
3 : Insular SiO4 Groups and Other Anions of Complex Cations with (UO2)
Hey's CIM Ref.:14.16.8

14 : Silicates not Containing Aluminum
16 : Silicates of U
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Type Occurrence of Cuprosklodowskite

Type Locality:Kalongwe deposit, Katanga (Shaba), Democratic Republic of Congo (Zaïre)
Year of Discovery:1933

Occurrences of Cuprosklodowskite

Geological Setting:Secondary mineral in uranium depposits

Physical Properties of Cuprosklodowskite

Lustre:Silky, Dull
Diaphaneity (Transparency):Transparent, Translucent
Colour:Yellowish green to grass green or greenish yellow
Hardness (Mohs):4
Cleavage:Distinct/Good
{100}
Density (measured):3.85(2) g/cm3
Density (calculated):3.83 g/cm3

Crystallography of Cuprosklodowskite

Crystal System:Triclinic
Class (H-M):1 - Pinacoidal
Space Group:P1
Cell Parameters:a = 7.052(5) Å, b = 9.267(8) Å, c = 6.655(5) Å
α = 109.23°, β = 89.84°, γ = 110.01°
Ratio:a:b:c = 0.761 : 1 : 0.718
Unit Cell Volume:V 382.88 ų (Calculated from Unit Cell)
Z:1
Morphology:Needles

Optical Data of Cuprosklodowskite

Type:Biaxial (-)
RI values: nα = 1.654 - 1.655 nβ = 1.664 - 1.667 nγ = 1.664 - 1.667
Maximum Birefringence:δ = 0.010 - 0.012

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:Moderate
Dispersion:r > v
Pleochroism:Visible
Comments:X= nearly colorless
Y=Z= yellowish green

Chemical Properties of Cuprosklodowskite

Formula:
Cu(UO
 
2
)
 
2
[HSiO
 
4
]
 
2
· 6H
 
2
O
Simplified for copy/paste:Cu(UO2)2[HSiO4]2·6H2O
Essential elements:Cu, H, O, Si, U
All elements listed in formula:Cu, H, O, Si, U

Relationship of Cuprosklodowskite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
9.AK.05Soddyite
(UO
 
2
)
 
2
SiO
 
4
· 2H
 
2
O
9.AK.10Oursinite
(Co,Mg)(UO
 
2
)
 
2
[HSiO
 
4
]
 
2
· 6H
 
2
O
9.AK.10Sklodowskite
Mg(UO
 
2
)
 
2
[HSiO
 
4
]
 
2
· 5H
 
2
O
9.AK.15Boltwoodite
(K,Na)(UO
 
2
)[HSiO
 
4
] · 0.5H
 
2
O
9.AK.15Kasolite
Pb(UO
 
2
)[SiO
 
4
] · H
 
2
O
9.AK.15Natroboltwoodite
(H
 
3
O)(Na,K)UO
 
2
SiO
 
4
· H
 
2
O
9.AK.15β-Uranophane
Ca(UO
 
2
)
 
2
(HSiO
 
4
)
 
2
· 5H
 
2
O
9.AK.15Uranophane
Ca(UO
 
2
)
 
2
[HSiO
 
4
]
 
2
· 5H
 
2
O
9.AK.15Beta-Uranophane
9.AK.20Swamboite
UH
 
6
(UO
 
2
)
 
6
(SiO
 
4
)
 
6
· 30H
 
2
O
9.AK.25Haiweeite
Ca(UO
 
2
)
 
2
[Si
 
5
O
 
12
(OH)
 
2
] · 6H
 
2
O
9.AK.25Metahaiweeite
Ca(UO
 
2
)
 
2
Si
 
6
O
 
15
· nH
 
2
O
9.AK.25Ranquilite
9.AK.30Weeksite
K
 
2
(UO
 
2
)
 
2
(Si
 
5
O
 
13
) · 4H
 
2
O
9.AK.30Coutinhoite
Th
 
x
Ba
 
(1-2x)
(UO
 
2
)
 
2
Si
 
5
O
 
13
· (H
 
2
O)
 
1+y
(0 < x < 0.5 and 0 < y < (2+x))
9.AK.35Ursilite
(Mg,Ca)
 
4
(UO
 
2
)
 
4
(Si
 
2
O
 
5
)
 
5.5
(OH)
 
5
· 13H
 
2
O
9.AK.35Magnioursilite
Mg
 
4
(UO
 
2
)
 
4
(Si
 
2
O
 
5
)
 
5
(OH)
 
6
· 20H
 
2
O
9.AK.35Calcioursilite
Ca
 
4
(UO
 
2
)
 
4
(Si
 
2
O
 
5
)
 
5
(OH)
 
6
· 15H
 
2
O
9.AK.40Uranosilite
UO
 
3
· 7SiO
 
2
Related Minerals - Hey's Index Grouping:

- +
14.16.1Uranosilite
UO
 
3
· 7SiO
 
2
14.16.2Coffinite
(U
4+
 
,Th)(SiO
 
4
)
 
1-x
(OH)
 
4x
14.16.3Soddyite
(UO
 
2
)
 
2
SiO
 
4
· 2H
 
2
O
14.16.4Swamboite
UH
 
6
(UO
 
2
)
 
6
(SiO
 
4
)
 
6
· 30H
 
2
O
14.16.5Weeksite
K
 
2
(UO
 
2
)
 
2
(Si
 
5
O
 
13
) · 4H
 
2
O
14.16.6Boltwoodite
(K,Na)(UO
 
2
)[HSiO
 
4
] · 0.5H
 
2
O
14.16.7Natroboltwoodite
(H
 
3
O)(Na,K)UO
 
2
SiO
 
4
· H
 
2
O
14.16.9Sklodowskite
Mg(UO
 
2
)
 
2
[HSiO
 
4
]
 
2
· 5H
 
2
O
14.16.10Uranophane
Ca(UO
 
2
)
 
2
[HSiO
 
4
]
 
2
· 5H
 
2
O
14.16.11β-Uranophane
Ca(UO
 
2
)
 
2
(HSiO
 
4
)
 
2
· 5H
 
2
O
14.16.12Haiweeite
Ca(UO
 
2
)
 
2
[Si
 
5
O
 
12
(OH)
 
2
] · 6H
 
2
O
14.16.13Metahaiweeite
Ca(UO
 
2
)
 
2
Si
 
6
O
 
15
· nH
 
2
O
14.16.14Thorogummite
(Th,U)(SiO
 
4
)
 
1-x
(OH)
 
4x
14.16.15Steacyite
(◻,K)(Na,Ca)
 
2
(Th,U)[Si
 
8
O
 
20
]
14.16.16Ekanite
(Ca,Fe
2+
 
,Pb)
 
2
(Th,U)[Si
 
8
O
 
20
]
14.16.17Kasolite
Pb(UO
 
2
)[SiO
 
4
] · H
 
2
O
14.16.18Orlite
Pb
 
3
(UO
 
2
)
 
3
(Si
 
2
O
 
7
)
 
2
· 6H
 
2
O
14.16.19Oursinite
(Co,Mg)(UO
 
2
)
 
2
[HSiO
 
4
]
 
2
· 6H
 
2
O

Other Names for Cuprosklodowskite

Synonyms:
CuprosklodovskiteJachymovite (of Novácek)
Other Languages:
German:Cuprosklodovskit
Russian:Купросклодовскит
Simplified Chinese:硅铜铀矿
Spanish:Cuprosklodovskita
Traditional Chinese:硅銅鈾礦
矽銅鈾礦

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 Cuprosklodowskite

Reference List:

- +
Rosenzweig, A. and Ryan, R.R. (1975) Refinement of the crystal structure of cuprosklodowskite, Cu[(UO2)2(SiO3OH)2].6H2O. American Mineralogist: 60: 448-453.

American Mineralogist: 66: 610-625.

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 Cuprosklodowskite

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

    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.
    Argentina
     
    • La Rioja
      • Coronel Felipe Varela Department
    Lucero, H. N., Díez, D. y Timoneri, A. (1963). Contribución al conocimiento de algunas manifestaciones uraníferas en la provincias de Córdoba, La Rioja y San Luis. Anales de las segundas Jornadas Geológicas Argentinas, Salta, Argentina.
    Lucero, H. N., Díez, D. y Timoneri, A. (1963). Contribución al conocimiento de algunas manifestaciones uraníferas en la provincias de Córdoba, La Rioja y San Luis. Anales de las segundas Jornadas Geológicas Argentinas, Salta, Argentina.
    American Mineralogist: 46: 12-25.
    • Mendoza
      • Malargüe Department
        • Pampa Amarilla District
    American Mineralogist: 51: 1-13
    Canada
     
    • Northwest Territories
      • Mackenzie District
        • Great Bear Lake
    Cowan, L.I. (1962): Cuprosklodowskite, kasolite and schoepite from Great Bear Lake, Northwest Territories, Canada. Can. Mineral. 7, 331-332.
    Czech Republic
     
    • Bohemia (Böhmen; Boehmen)
      • Central Bohemia Region
        • Příbram
          • Březové Hory ore region (Birkenberg)
            • Březové Hory deposit
    Ondruš, P. & Hyršl, J. (1989): New finds and revision of secondary minerals from Příbram district. Acta Universitatis Carolinae, Geologica 1989, 521-533.; Ondrus+Hyrsl (1989)
    Ondruš, P. & Hyršl, J. (1989): New finds and revision of secondary minerals from Příbram district. Acta Universitatis Carolinae, Geologica 1989, 521-533.; Pauliš P., Kopecký S., Černý P. 2007: Uranové minerály České Republiky a jejich naleziště. 1. část. (Kutna Hora, issue 1)
      • Karlovy Vary Region
    Pauliš P., Kopecký S., Černý P. 2007: Uranové minerály České Republiky a jejich naleziště. 1. část. (Kutna Hora, issue 1)
    Plašil J, Sejkora J, Ondruš P, Veselovský F, Beran P, Goliáš V (2006): Supergene minerals in the Horní Slavkov uranium ore district, Czech Republic. Journal of the Czech Geological Society 51, 149-158. ; Sejkora, J. & Plasil, J. (2009): Mineralien aus dem Uranrevier Horni Slavkov. Lapis 34 (7-8), 63-67; 70 (in German).
        • Krušné Hory Mts (Erzgebirge)
          • Jáchymov District (St Joachimsthal)
    Duda, Rejl, Slivka: "Mineralien", 1991
    Tvrdý, J. & Plášil, J. (2010): Jáchymov - Reiche Erzlagerstätte und Radonbad im böhmischen Westerzgebirge. Aufschluss 61, 277-292.
      • Plzeň Region
        • Planá u Mariánských Lázní (Plan)
    Pauliš P., Kopecký S., Černý P. 2007: Uranové minerály České Republiky a jejich naleziště. 1. část. (Kutna Hora, issue 1)
      • South Bohemia Region
        • Strakonice
    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 (Jauernig)
    Sejkora, J., Pauliš, P., Škoda, R.: Uranové ložisko Zálesí v Rychlebských horách. Minerál, 2007, roč. 15, č. 4, s. 305-238.; - Plášil, J., Sejkora, J., Goliáš, V..: Kuprosklodowskit z uranového ložiska Zálesí u Javorníka v Rychlebských horách (Česká republika). Bulletin mineralogicko-petrografického oddělení Národního muzea v Praze, 2008, vol. 16, 2, 205-207.
      • Vysočina Region
        • Žďár nad Sázavou
    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)
    Ann.Soc.Gèol.Belg.(1933) 56, B 331-332
      • Katanga Copper Crescent
        • Kambove District
    V.D.C. Daltry (1992) The Type Mineralogy Of Africa : Zaire pp 33-62
        • Kolwezi District
          • Kamoto
    J.W. Anthony, R.A. Bideaux, K.W. Bladh, M.C. Nichols: Handbook of Mineralogy, Vol. V (2003)
          • Kolwezi
    V.D.C. Daltry (1992) The Type Mineralogy Of Africa : Zaire pp 33-62
        • Lubumbashi (Elizabethville)
        • Shinkolobwe
        • Swambo
    France
     
    • Franche-Comté
      • Haute-Saône
        • Château-Lambert
    Le Règne Minéral, Hors Série IV, 1998
    • Languedoc-Roussillon
      • Hérault
        • Lodève
    [Le Règne Minéral 1997, 13, p.5-18]
    • Provence-Alpes-Côte d'Azur
      • Alpes-Maritimes
        • Saint-Martin-Vésubie
          • Belvédère
            • Capelet Mt.
    R. Pierrot, P. Picot, J. Féraud, J. Vernet : "Inventaire Minéralogique de la France N° 4 : Alpes-Maritimes", BRGM, 1974
    Le Règne Minéral, Hors Série IV, 1998
        • Saint-Sauveur-sur-Tinée
          • Roure
    Le Règne Minéral, Hors Série IV, 1998
    Germany
     
    • Baden-Württemberg
      • Black Forest
        • Menzenschwand
    Walenta: "Die Mineralien des Schwarzwaldes", Weise (Munich), 1992
    • Bavaria
      • Franconia
        • Spessart
          • Hösbach
            • Sailauf
              • Hartkoppe
    Aufschluss 1987(8/9), 275-277; Aufschluss 1987(10), 317-329
      • Upper Palatinate
        • Schwandorf
          • Wölsendorf Fluorite mining District
            • Wölsendorf East District (Wölsendorf - Nabburg District)
    Weiss: "Mineralfundstellen, Deutschland West", Weise (Munich), 1990
    • Saxony
      • Erzgebirge
    Lapis 30(7/8):78-80 (2005)
    Italy
     
    • Trentino-Alto Adige
      • Trento Province
        • Condino
    Campostrini, I., Demartin, F., & Gramaccioli, C. M. (2006). Rio Giulis. Minerali secondari del giacimento uranifero presso Condino, Trento. Rivista Mineralogica Italiana, 30(3), 152-165.
        • Daone
          • Limes
    Campostrini, I., Demartin, F., Gramaccioli, C.M. (2005): Val Daone. Minerali secondari del giacimento uranifero presso Limes, Daone (TN). Rivista Mineralogica Italiana, 4/2005, 228-240.
        • Rendena Valley
    Campostrini I.(2013): Minerali secondari dei giacimenti uraniferi nelle Arenarie di Val Gardena del Trentino occidentale (Alpi Meridionali, Italia). Studi Trent. Sci. Nat., 93, pagg. 89-114.
    Japan
     
    • Honshu Island
      • Chugoku Region
        • Okayama Prefecture
    Kato (1973), Sakurai Kobutsu Hyohon (Sakurai collection) 44
    Morocco
     
    No reference listed
    Poland
     
    • Lower Silesia (Dolnośląskie)
      • Rudawy Janowickie Mts
        • Jelenia Góra District
    Siuda R., Domańska-Siuda J. & Gołębiowska B. 2010: Secondary uranium minerals from the Miedzianka-Ciechanowice deposit (Rudawy Janowickie Mts., Poland). Mineralogia - Special Papers, vol. 37, 108
    Spain
     
    • Catalonia
      • Lleida (Lérida)
        • El Pallars Jussà
          • La Torre de Cabdella
            • La Plana de Mont-ros
              • Castell-estaó
    MTI Mineralogía Topográfica Ibérica, 2009
    Switzerland
     
    • Glarus
      • Murg Valley
    No reference listed
    • Wallis (Valais)
      • Anniviers Valley
        • Saint-Luc
    Ansermet, S. (2012): Mines et minéraux du Valais - II. Anniviers et Tourtemagne. With contributions by N. Meisser, Ed. Porte-plumes (Ayer)
      • Nendaz Valley
        • Siviez
    Stalder, H. A., Wagner, A., Graeser, S. and Stuker, P. (1998): Mineralienlexikon der Schweiz. Wepf (Basel), p. 127.
      • Riddes
        • Isérables
    Stalder, H. A., Wagner, A., Graeser, S. and Stuker, P. (1998): Mineralienlexikon der Schweiz. Wepf (Basel), p. 127.
    UK
     
    • England
      • Cornwall
        • St Just District
          • St Just
            • Botallack
    P Haas
              • Wheal Owles
    Golley, P. & Williams, R. (1995): Cornish Mineral Reference Manual. Endsleigh Publications (Truro), 104 pp.
            • Pendeen
    [Golley & Williams, 1995, 21 - "Cornish Mineral Reference Manual"]
    USA
     
    • California
      • Plumas Co.
        • Diamond Mts
    Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 165.
          • Last Chance District
            • Adams Peak
    Troxel, Bennie Wyatt, Stinson, M.C., and Chesterman, C.W. (1957) Uranium. California Division of Mines Bulletin 176: 673; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 516.
      • Riverside Co.
        • Pinto Mts
          • Old Dale area
    Saul, R.B., Evans, J.R., and Gray, C.H. (1970) Mines and mineral resources of Riverside County. California Division of Mines and Geology County Report 9. Unpublished manuscript: 1209; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 303, 516.
    • Nevada
      • Mineral Co.
        • Marietta District
    NBMG Spec. Pub. 31 Minerals of Nevada
    • New Mexico
      • Cibola Co.
    Northrop, Minerals of New Mexico, 3rd. rev. ed. (1996)
    Minerals of New Mexico 3rd ed.
    NMBMMR Memoir 15 Geology and Technology of the Grants Uranium Region; American Mineralogist 47:26-33; Moench, Robert Hadley; Schlee, John Stevens (1967) Geology and uranium deposits of the Laguna district, New Mexico. USGS Prof. Paper 519
      • McKinley Co.
    Northrop, Minerals of New Mexico, 3rd Rev. Ed., 1996
    Sun, M-S. and R.H.Weber: "Santafeite, a new hydrated vanadate from New Mexico", American Mineralogist (1958): 43: 677-687.
      • San Juan Co.
    Northrop, Minerals of New Mexico, 3rd. Rev. Ed., 1996
      • Sierra Co.
    New Mexico Bureau of Mines and Mineral Resources, Mineral Museum no. 13172
    • Utah
      • San Juan Co.
        • Elk Ridge
          • Notch Mines
    UGMS Bull 117 Minerals and Mineral Localities of Utah
    UGMS Bull 117 Minerals and Mineral Localities of Utah
    Min News 17:7 p1
        • White Canyon District
          • Red Canyon
    UGMS Bull 117 Minerals and Mineral Localities of Utah
    UGMS Bull 117 Minerals and Mineral Localities of Utah; Page, L. R.; Stocking, H. E.; Smith, H. B. (1956) Contributions to the geology of uranium and thorium by the United States Geological Survey and Atomic Energy Commission for the United Nations International Conference on Peaceful Uses of Atomic Energy, Geneva, Switzerland, 1955. USGS Professional Paper 300 pp281-284
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