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Vandenbrandeite Mineral Data

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General Vandenbrandeite Information

Help on Chemical  Formula: Chemical Formula: Cu(UO2)(OH)4
Help on Composition: Composition: Molecular Weight = 401.60 gm
   Uranium   59.27 %  U    67.24 % UO2
   Copper    15.82 %  Cu   19.81 % CuO
   Hydrogen   1.00 %  H     8.97 % H2O
   Oxygen    23.90 %  O
            ______        ______ 
            100.00 %       96.02 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Cu(UO2)(OH)4
Help on Environment: Environment: Secondary mineral on pitchblende ores.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1932
Help on Locality: Locality: Kalonqwe, Shaba, Zaire. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Pierre van den Brande (1896-1957), Belgian geologist who discovered the ore deposit at Kalongwe, Zaire.
Help on Name Pronunciation: Name Pronunciation: Vandenbrandeite + Pronunciation Say VANDENBRANDEITE
Help on Synonym: Synonym: ICSD 1041
  PDF 8-325
 

Vandenbrandeite Image

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  Vandenbrandeite

Comments: Cluster of deep greenish black crystals of vandenbrandeite to 2 mm.
Location: Musonoi Mine, Katanga, Dem. Rep. of the Congo. Scale: Picture size 1.5 cm.
© John Veevaert

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  Vandenbrandeite

Comments: Dark green vandenbrandeite crystal showing termination details.
Location: Musonoi Mine, Kolwezi, Western area, Shaba Cu belt, Shaba (Katanga), Congo (Zaïre). Scale: Picture size 3.5 cm.
© Paul M. Schumacher

Vandenbrandeite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =1.4448:1:1.1213
Help on Cell Dimensions: Cell Dimensions: a = 7.86, b = 5.44, c = 6.1, Z = 2; alpha = 91.87°, beta = 102°, gamma = 89.92° V = 254.99 Den(Calc)= 5.23
Help on Crystal System: Crystal System: Triclinic - Pinacoidal H-M Symbol ( 1) Space Group: P1
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 4.44(1), 5.26(0.9), 2.97(0.8),
Help on Forms: Forms:

Mouse
Dbl Clk - Start-Stop Rotation
RMB - Cycle Display Modes
Drag1 - Manipulate Crystal
Drag2 - Resize

Keyboard
S - Stereo
I - Indicies
<space> - Start-Stop Rotation
F - Fit to Screen
M - Menu

Help on Above

Forms: ( 1 1 0) ( 1 0 0) ( 0 0 1)

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Physical Properties of Vandenbrandeite

Help on Cleavage: Cleavage: {110} Perfect
Help on Color: Color: Dark green, Black green.
Help on Density: Density: 5.08
Help on Diaphaneity: Diaphaneity: Transparent to Translucent
Help on Habit: Habit: Scaly - Morphology like fish scales.
Help on Habit: Habit: Tabular - Form dimensions are thin in one direction.
Help on Hardness: Hardness: 4 - Fluorite
Help on Luminescence: Luminescence: Non-fluorescent and radioactive.
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: green
 

Optical Properties of Vandenbrandeite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.177 (Poor) - where the CI = (1-KPDmeas/KC)
CI calc= -0.143 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1502,KPDmeas= 0.1547,KC= 0.1314
Ncalc = 1.67 - 1.69
Help on Optical Data: Optical Data: Biaxial (-), a=1.765, b=1.792, g=1.8, bire=0.0350, 2V(Calc)=56, 2V(Meas)=90. Dispersion strong.
Help on Pleochroism (x): Pleochroism (x): blue green.
Help on Pleochroism (z): Pleochroism (z): yellow green.
 

Calculated Properties of Vandenbrandeite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=4.51 gm/cc
note: Specific Gravity of Vandenbrandeite =5.23 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0043836596
Boson Index = 0.9956163404
Help on Photoelectric: Photoelectric: PEVandenbrandeite =1,568.53 barns/electron
U=PEVandenbrandeite x relectron=7,067.61 barns/cc.
Help on Radioactivity: Radioactivity:

GRapi = 4,352,567.33 (Gamma Ray American Petroleum Institute Units)
Concentration of Vandenbrandeite per GRapi unit = 229.75 (PPB)

Vandenbrandeite is Radioactive as defined in 49 CFR 173.403. Greater than 70 Bq / gram.

Estimated Maximum U.S. Postal Shipping Size (10 mRem/hr limit, Unshielded 10 cm box) 6.99 ± 1.75 grams of pure Vandenbrandeite .
Estimated Maximum U.S. Postal Shipping Size (10 mRem/hr limit, Unshielded 100 cm box) 698.82 ±174.71 grams of pure Vandenbrandeite .

Estimated Radioactivity from Vandenbrandeite - very strong
Specimen
Size
Weight/Volume
(Sphere)
*
Calculated
Activity
Bequerols
(Bq)
Calculated
Activity
Curies (Ci)
Estimated
Activity
GR(api)
Estimated
Exposure
(mRem**)/hr
If Held in Hand
For One Hour
1000 gm / 7.15 cm 106,092,750 2.87E-03 4,352,567.33 1,430.98
100 gm / 3.32 cm 10,609,275 2.87E-04 435,256.73 143.10
10 gm / 1.54 cm 1,060,928 2.87E-05 43,525.67 14.31
1 gm / 7.15 mm 106,093 2.87E-06 4,352.57 1.43
0.1 gm / 3.32 mm 10,609 2.87E-07 435.26 0.14
0.01 gm / 1.54 mm 1,061 2.87E-08 43.53 0.01
0.001 gm / 0.71 mm 106 2.87E-09 4.35 0.00

Weight of pure Vandenbrandeite in grams (gm) and Calculated Diameter of a Sphere with a Density of 5.23 gm/cc.*
Goverment Estimate of Average Annual Exposure ( 360 mRem) **
Note: 10 microsieverts/hr = 1 mRem/hr **
Max Permissable Adult Dose 50,000 mRem/yr (hands), 15,000 mRem/yr (eyes)
Lethal Dose LD(50) Exposure 400,000 to 500,000 mRem
 

Vandenbrandeite Classification

Help on  Dana Class: Dana Class: 05.03.02.01 (05)Oxides Containing Uranium and Thorium
  (05.03)with a cation charge of 8+ (AO4) and hydrated
  (05.03.02)Dana Group
 
05.03.02.01 Vandenbrandeite Cu(UO2)(OH)4 P1 1
Help on  Strunz Class: Strunz Class: 04.GB.45 04 - OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodate
  04.G - Uranyl Hydroxides
  04.GB -With additional cations (K, Ca, Ba, Pb, etc.); with mainly UO2(O,OH)5 pentagonal polyhedra
 
04.GB.45 Vandenbrandeite Cu(UO2)(OH)4 P1 1
 

Other Vandenbrandeite Information

Help on References: References: NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Dana8)
Help on See Also: See Also: Links to other databases for Vandenbrandeite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - GeoScienceWorld
6 - Google Images
7 - Google Scholar
8 - Handbook of Mineralogy (MinSocAm)
9 - Handbook of Mineralogy (UofA)
10 - MinDAT
11 - Mineralienatlas (Deutsch)
12 - Online Mineral Museum
13 - QUT Mineral Atlas
14 - Ruff.Info
15 - Uranium Minerals
16 - WWW-MINCRYST

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Vandenbrandeite

Cu(UO2)(OH)4
Dana No: 05.03.02.01 Strunz No: 04.GB.45
Locality:

 

Notes:

 

 
   
 


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