Vandenbrandeite
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Formula:
CuUO2(OH)4
System:
Triclinic
Colour:
Blackish green to dark ...
Lustre:
Vitreous, Sub-Vitreous, Greasy
Hardness:
4
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.
Classification of Vandenbrandeite
Approved, 'Grandfathered' (first described prior to 1959)
4/H.04-10
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
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
5 : OXIDES CONTAINING URANIUM OR THORIUM
3 : AXO4·xH2O
7.16.9
7 : Oxides and Hydroxides
16 : Oxides of U
7 : Oxides and Hydroxides
16 : Oxides of U
Physical Properties of Vandenbrandeite
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.
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 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
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 Vandenbrandeite
IMA Formula:
CuUO2(OH)4
Elements listed in formula:
Crystallography of Vandenbrandeite
Crystal System:
Triclinic
Class (H-M):
1 - Pinacoidal
Space Group:
P1
Space Group 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°
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 Data:
| d-spacing | Intensity |
|---|---|
| 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)
Occurrences of Vandenbrandeite
Type Occurrence of Vandenbrandeite
Relationship of Vandenbrandeite to other Species
| 4.GB.05 | Agrinierite | K2Ca[(UO2)3O3(OH)2]2 · 5H2O |
| 4.GB.05 | Compreignacite | K2(UO2)6O4(OH)6 · 7H2O |
| 4.GB.05 | Rameauite | K2Ca(UO2)6O6(OH)4 · 6H2O |
| 4.GB.10 | Becquerelite | Ca(UO2)6O4(OH)6 · 8H2O |
| 4.GB.10 | Billietite | Ba(UO2)6O4(OH)6 · 8H2O |
| 4.GB.10 | Protasite | Ba(UO2)3O3(OH)2 · 3H2O |
| 4.GB.15 | Richetite | (Fe3+,Mg)xPb2+8.6(UO2)36O36(OH)24 · 41H2O |
| 4.GB.20 | Bauranoite | BaU2O7 · 4-5H2O |
| 4.GB.20 | Calciouranoite | (Ca,Ba,Pb,K,Na)U2O7 · 5H2O |
| 4.GB.20 | Metacalciouranoite | (Ca,Na,Ba)U2O7 · 2H2O |
| 4.GB.25 | Fourmarierite | Pb1-xO3-2x(UO2)4(OH)4+2x · 4H2O |
| 4.GB.30 | Wölsendorfite | Pb7(UO2)14O19(OH)4 · 12H2O |
| 4.GB.35 | Masuyite | Pb(UO2)3O3(OH)2 · 3H2O |
| 4.GB.40 | Metavandendriesscheite | PbU7O22 · nH2O |
| 4.GB.40 | Vandendriesscheite | Pb1.6(UO2)10O6(OH)11 · 11H2O |
| 4.GB.50 | Sayrite | Pb2(UO2)5O6(OH)2 · 4H2O |
| 4.GB.55 | Curite | Pb3+x[(UO2)4O4+x(OH)3-x]2 · 2H2O |
| 4.GB.60 | Iriginite | (UO2)Mo26+O7 · 3H2O |
| 4.GB.65 | Uranosphaerite | Bi(UO2)O2(OH) |
| 4.GB.70 | Holfertite | (UO2)1.75Ca0.25TiO4 · 3H2O |
| 7.16.1 | Uraninite | UO2 |
| 7.16.2 | Schoepite | (UO2)8O2(OH)12 · 12H2O |
| 7.16.3 | Paraschoepite | UO3 · (2-x)H2O |
| 7.16.4 | Metaschoepite | (UO2)8O2(OH)12 · 10H2O |
| 7.16.5 | Metastudtite | (UO2)O2(H2O)2 |
| 7.16.6 | Studtite | (UO2)O2(H2O)2 · 2H2O |
| 7.16.7 | Ianthinite | U24+(UO2)4O6(OH)4 · 9H2O |
| 7.16.8 | Compreignacite | K2(UO2)6O4(OH)6 · 7H2O |
| 7.16.10 | Roubaultite | Cu2O2(UO2)3(CO3)2(OH)2 · 4H2O |
| 7.16.11 | Becquerelite | Ca(UO2)6O4(OH)6 · 8H2O |
| 7.16.12 | Rameauite | K2Ca(UO2)6O6(OH)4 · 6H2O |
| 7.16.13 | Agrinierite | K2Ca[(UO2)3O3(OH)2]2 · 5H2O |
| 7.16.14 | Protasite | Ba(UO2)3O3(OH)2 · 3H2O |
| 7.16.15 | Billietite | Ba(UO2)6O4(OH)6 · 8H2O |
| 7.16.16 | Bauranoite | BaU2O7 · 4-5H2O |
| 7.16.17 | Metacalciouranoite | (Ca,Na,Ba)U2O7 · 2H2O |
| 7.16.18 | Calciouranoite | (Ca,Ba,Pb,K,Na)U2O7 · 5H2O |
| 7.16.19 | Orthobrannerite | U4+U6+Ti4O12(OH)2 |
| 7.16.20 | Thorutite | (Th,U,Ca)Ti2(O,OH)6 |
| 7.16.21 | Davidite-(La) | La(Y,U)Fe2(Ti,Fe,Cr,V)18(O,OH,F)38 |
| 7.16.22 | Davidite-(Ce) | Ce(Y,U)Fe2(Ti,Fe,Cr,V)18(O,OH,F)38 |
| 7.16.23 | Brannerite | UTi2O6 |
| 7.16.24 | Fourmarierite | Pb1-xO3-2x(UO2)4(OH)4+2x · 4H2O |
| 7.16.25 | Richetite | (Fe3+,Mg)xPb2+8.6(UO2)36O36(OH)24 · 41H2O |
| 7.16.26 | Curite | Pb3+x[(UO2)4O4+x(OH)3-x]2 · 2H2O |
| 7.16.27 | Masuyite | Pb(UO2)3O3(OH)2 · 3H2O |
| 7.16.28 | Vandendriesscheite | Pb1.6(UO2)10O6(OH)11 · 11H2O |
| 7.16.29 | Metavandendriesscheite | PbU7O22 · nH2O |
| 7.16.30 | Sayrite | Pb2(UO2)5O6(OH)2 · 4H2O |
| 7.16.31 | Wölsendorfite | Pb7(UO2)14O19(OH)4 · 12H2O |
| 7.16.32 | Clarkeite | Na(UO2)O(OH) · nH2O |
| 7.16.33 | Uranosphaerite | Bi(UO2)O2(OH) |
Other Names for Vandenbrandeite
Name in Other Languages:
Other Information
Not fluorescent
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 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.
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
mindat.org URL:
https://www.mindat.org/min-4144.html
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Localities for Vandenbrandeite
This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the 
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(TL) indicates type locality for a valid mineral species. (FRL) indicates first recorded locality for everything else. ? 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 | |
| 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) | |
| Am Min 36:394-410 |
| |
| J.W. Anthony, R.A. Bideaux, K.W. Bladh, M.C. Nichols: Handbook of Mineralogy, Vol. V (2003) |
| [MinRec 9:33, 9:114] |
| 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. |
| [MinRec 20:287] |
| |
France | |
| [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 | |
| Golley, P. & Williams, R. (1995): Cornish Mineral Reference Manual. Endsleigh Publications (Truro), 104 pp. |
Musonoi Mine, Kolwezi, Kolwezi District, Katanga Copper Crescent, Katanga, Democratic Republic of Congo