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Vandenbrandeite

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Formula:
Cu(UO
 
2
)(OH)
 
4
System:TriclinicColour:Blackish green to dark ...
Hardness:4
Name:Named by Alfred Schoep in 1932 in honour of Pierre Van den Brande (1896-1957), Belgian geologist, Geological Survey of Katanga, who discovered the deposit at Kalongwe.
This page provides mineralogical data about Vandenbrandeite.

Classification of Vandenbrandeite

IMA status:Valid - first described prior to 1959 (pre-IMA) - "Grandfathered"
Strunz 8th edition ID:4/H.04-10
Nickel-Strunz 10th (pending) edition ID:4.GB.45

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:5.3.2.1

5 : OXIDES CONTAINING URANIUM OR THORIUM
3 : AXO4·xH2O
Hey's CIM Ref.:7.16.9

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

Type Locality:Kalongwe deposit, Katanga (Shaba), Democratic Republic of Congo (Zaïre)
Year of Discovery:1932
Associated Minerals at type locality:
MalachiteKasolite

Occurrences of Vandenbrandeite

Geological Setting:Oxide zone above a supergene copper deposit

Physical Properties of Vandenbrandeite

Lustre:Vitreous, Sub-Vitreous, Greasy
Diaphaneity (Transparency):Transparent, Translucent
Colour:Blackish green to dark green with bluish green tint
Streak:Green
Hardness (Mohs):4
Tenacity:Brittle
Cleavage:Perfect
On {001} perfect; distinct in the zone [001]; and, indistinct also in that zone.
Density (measured):5.03 g/cm3
Density (calculated):5.26 g/cm3

Crystallography of Vandenbrandeite

Crystal System:Triclinic
Class (H-M):1 - Pinacoidal
Space Group:P1
Space Group Setting:P1
Cell Parameters:a = 7.86Å, b = 5.44Å, c = 6.10Å
α = 91.87°, β = 102.0°, γ = 89.62°
Ratio:a:b:c = 1.445 : 1 : 1.121
Unit Cell Volume:V 254.99 ų (Calculated from Unit Cell)
Morphology:Somewhat bladed {001} crystals with acute habit, often in parallel aggregates; lathlike at times. Massive.
X-Ray Powder Diffraction:
d-spacingIntensity
5.06 (40)
4.29 (100)
2.92 (80)
2.56 (40)
2.09 (30)
1.85 (30)
1.47 (30)
1.32 (30)
Comments:ICDD 4-340 (natural)

Optical Data of Vandenbrandeite

Type:Biaxial (-)
RI values: nα = 1.765 - 1.770 nβ = 1.780 - 1.792 nγ = 1.800
2V:Measured: 90° , Calculated: 60° to 88°
Birefringence:0.035
Maximum Birefringence:δ = 0.035

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:Very High
Dispersion:none
Pleochroism:Visible
Comments:X blue green, Z yellow green

Chemical Properties of Vandenbrandeite

Formula:
Cu(UO
 
2
)(OH)
 
4
Simplified for copy/paste:Cu(UO2)(OH)4
Essential elements:Cu, H, O, U
All elements listed in formula:Cu, H, O, U

Relationship of Vandenbrandeite 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.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
7.16.10Roubaultite
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 Vandenbrandeite

Synonyms:
Uranolepidite
Other Languages:
German:Uranolepidit
Vandenbrandeit
Russian:Ванденбрандеит
Spanish:Uranolepidita
Vandenbrandeita

Other Information

Fluorescence in UV light:Not fluorescent
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 Vandenbrandeite

Reference List:

- +
Schoep (1932) Ann. Mus. Congo belge, Tervuren, 1(1), no. 3, 25-31.

Thoreau (1933) Soc. géol. Belgique, Ann.: 55: C3 (as Uranolepidite).

American Mineralogist (1933): 18: 179.

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: 632-633.

American Mineralogist (1951): 36: 394-410.

Frondel, C. (1958) US Geological Survey Bulletin 1064: 100-103.

Rosenzweig, A. and Ryan, R.R. (1977b) Vandenbrandeite CuUO2(OH)4. Cryst. Struct. Commun.: 6: 53-56.

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 Vandenbrandeite

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

    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.
    Czech Republic
     
    • Moravia (Mähren; Maehren)
      • 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)
    Am Min 36:394-410
      • Katanga Copper Crescent
        • Kambove District
        • Kolwezi District
          • Kamoto
    J.W. Anthony, R.A. Bideaux, K.W. Bladh, M.C. Nichols: Handbook of Mineralogy, Vol. V (2003)
          • Kolwezi
    [MinRec 9:33, 9:114]
        • Lubumbashi (Elizabethville)
    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: 1048; Mineralogical Record: 20: 268.
        • Shinkolobwe
    [MinRec 20:287]
        • Swambo
    France
     
    • Languedoc-Roussillon
      • Hérault
        • Lodève
    [Le Règne Minéral 1997, 13, p.5-18]
    UK
     
    • England
      • Cornwall
        • St Just District
          • St Just
            • Botallack
              • Wheal Owles
    Golley, P. & Williams, R. (1995): Cornish Mineral Reference Manual. Endsleigh Publications (Truro), 104 pp.
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