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Vandenbrandeite

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Formula:
Cu(UO2)(OH)4
Colour:
Blackish green to dark green with bluish green tint
Lustre:
Vitreous, Sub-Vitreous, Greasy
Hardness:
4
Specific Gravity:
5.03
Crystal System:
Triclinic
Name:
Named by Alfred Schoep in 1932 in honour of Pierre Van den Brande (born Brussels April 11 th 1896 and died December 10th 1957 near Kabombwe, DRCongo, after an attack by elephants), Belgian geologist, Geological Survey of Katanga, who discovered the deposit at Kalongwe.
This page provides mineralogical data about Vandenbrandeite.


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Classification of VandenbrandeiteHide

Approved, 'Grandfathered' (first described prior to 1959)
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
5.3.2.1

5 : OXIDES CONTAINING URANIUM OR THORIUM
3 : AXO4·xH2O
7.16.9

7 : Oxides and Hydroxides
16 : Oxides of U

Physical Properties of VandenbrandeiteHide

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

Optical Data of VandenbrandeiteHide

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
Max Birefringence:
δ = 0.035
Image 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 VandenbrandeiteHide

Formula:
Cu(UO2)(OH)4
IMA Formula:
CuUO2(OH)4

Crystallography of VandenbrandeiteHide

Crystal System:
Triclinic
Class (H-M):
1 - Pinacoidal
Space Group:
P1
Setting:
P1
Cell Parameters:
a = 7.86 Å, b = 5.44 Å, c = 6.10 Å
α = 91.87°, β = 102.0°, γ = 89.62°
Ratio:
a:b:c = 1.445 : 1 : 1.121
Unit Cell 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 DiffractionHide

Powder Diffraction Data:
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)

Type Occurrence of VandenbrandeiteHide

Synonyms of VandenbrandeiteHide

Other Language Names for VandenbrandeiteHide

Common AssociatesHide

Associated Minerals Based on Photo Data:
Cuprosklodowskite23 photos of Vandenbrandeite associated with Cuprosklodowskite on mindat.org.
Malachite17 photos of Vandenbrandeite associated with Malachite on mindat.org.
Guilleminite13 photos of Vandenbrandeite associated with Guilleminite on mindat.org.
Kasolite6 photos of Vandenbrandeite associated with Kasolite on mindat.org.
Schoepite2 photos of Vandenbrandeite associated with Schoepite on mindat.org.
Demesmaekerite2 photos of Vandenbrandeite associated with Demesmaekerite on mindat.org.
Shabaite-(Nd)2 photos of Vandenbrandeite associated with Shabaite-(Nd) on mindat.org.
Soddyite2 photos of Vandenbrandeite associated with Soddyite on mindat.org.
Uranophane2 photos of Vandenbrandeite associated with Uranophane on mindat.org.
Torbernite2 photos of Vandenbrandeite associated with Torbernite on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

4.GB.05AgrinieriteK2(Ca,Sr)[(UO2)3O3(OH)2]2 · 5H2OOrth.
4.GB.05CompreignaciteK2(UO2)6O4(OH)6 · 7H2OOrth.
4.GB.05RameauiteK2Ca(H[3]2O)(H[5]2O)4[(UO2)6O6(OH)4](H[4]2O)Mon. m : Bb
4.GB.10BecquereliteCa(UO2)6O4(OH)6 · 8H2OOrth. mm2 : Pna21
4.GB.10BillietiteBa(UO2)6O4(OH)6 · 4-8H2OOrth. mm2
4.GB.10ProtasiteBa(UO2)3O3(OH)2 · 3H2OMon.
4.GB.15Richetite(Fe3+,Mg)Pb 8.6(UO2)36O36(OH)24•41H2O Tric.
4.GB.20BauranoiteBa(UO2)2(OH)6 · 1-2H2O
4.GB.20Calciouranoite(Ca,Ba,Pb)U2O7 · 5H2O
4.GB.20Metacalciouranoite(Ca,Ba,Pb,K2)U2O7 · 2H2O
4.GB.25FourmarieritePb(UO2)4O3(OH)4 · 4H2OOrth.
4.GB.30Wölsendorfite(Pb,Ca)U2O7 · 2H2OOrth. mmm (2/m 2/m 2/m) : Cmcm
4.GB.35MasuyitePb(UO2)3O3(OH)2 · 3H2OOrth.
4.GB.40MetavandendriesscheitePbU7O22 · nH2O n < 12Orth.
4.GB.40VandendriesscheitePbU7O22 · 12H2O
4.GB.50SayritePb2(UO2)5O6(OH)2 · 4H2OMon.
4.GB.55CuritePb3(UO2)8O8(OH)6 · 3H2OOrth. mmm (2/m 2/m 2/m) : Pnma
4.GB.60Iriginite(UO2)Mo2O7 · 3H2OOrth. mmm (2/m 2/m 2/m) : Pbcm
4.GB.65UranosphaeriteBi(UO2)O2(OH)Mon. 2/m
4.GB.70HolfertiteCaxU6+2-xTi(O8-xOH4x) · 3H2OTrig. 3 : P3

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.
7.16.4MetaschoepiteUO3 · 1-2H2OOrth. mmm (2/m 2/m 2/m) : Pbcn
7.16.5MetastudtiteUO4 · 2H2OOrth. mmm (2/m 2/m 2/m) : Pnma
7.16.6Studtite[(UO2)(O2)(H2O)2] · H2OMon.
7.16.7IanthiniteU4+(UO2)5O7 · 10H2OOrth. mm2 : Amm2
7.16.8CompreignaciteK2(UO2)6O4(OH)6 · 7H2OOrth.
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(H[3]2O)(H[5]2O)4[(UO2)6O6(OH)4](H[4]2O)Mon. 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,Ce)(Y,U,Fe)(Ti,Fe)20(O,OH)38Trig.
7.16.22Davidite-(Ce)(Ce,La)(Y,U,Fe)(Ti,Fe)20(O,OH)38Trig. 3 : R3
7.16.23Brannerite(U4+,REE,Th,Ca)(Ti,Fe3+,Nb)2(O,OH)6Mon. 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(UO2)8O8(OH)6 · 3H2OOrth. mmm (2/m 2/m 2/m) : Pnma
7.16.27MasuyitePb(UO2)3O3(OH)2 · 3H2OOrth.
7.16.28VandendriesscheitePbU7O22 · 12H2O
7.16.29MetavandendriesscheitePbU7O22 · nH2O n < 12Orth.
7.16.30SayritePb2(UO2)5O6(OH)2 · 4H2OMon.
7.16.31Wölsendorfite(Pb,Ca)U2O7 · 2H2OOrth. 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

Fluorescence of VandenbrandeiteHide

Not fluorescent

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 VandenbrandeiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
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 VandenbrandeiteHide

Localities for VandenbrandeiteHide

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.
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) (TL)
 
  • 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
 
  • Occitanie
    • Hérault
      • Lodève
[Le Règne Minéral 1997, 13, p.5-18]; Bariand, P., Bachet, B., Brassy, C., Medenbach, O., Deliens, M., Vautier, R., & Piret, P. (1993) A New Uranium Mineral from the Talmessi Mine, Iran, and Rabejac, France. Mineralogical Record: 24: 463-467
UK
 
  • England
    • Cornwall
      • St Just District
        • St Just
          • Botallack
Golley, P. & Williams, R. (1995): Cornish Mineral Reference Manual. Endsleigh Publications (Truro), 104 pp.
Mineral and/or Locality  
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