Uranosphaerite  Mineral Data

Uranosphaerite Mineral Data

Search Webmineral :
   
Home Crystal jmol jPOWD Chem X Ray Dana Strunz Properties A to Z Images Share
      News Help About


General Uranosphaerite Information

Help on Chemical  Formula: Chemical Formula: Bi(UO2)O2(OH)
Help on Composition: Composition: Molecular Weight = 528.01 gm
   Uranium   45.08 %  U    51.14 % UO2
   Bismuth   39.58 %  Bi   44.12 % Bi2O3
   Hydrogen   0.19 %  H     1.71 % H2O
   Oxygen    15.15 %  O
            ______        ______ 
            100.00 %       96.97 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Bi(UO2)O2(OH)
Help on Environment: Environment: Oxidic zone of "gummite" alteration of uraninite.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1873
Help on Locality: Locality: Shinkolobwe, Shaba, Zaire. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for the compostition uranium and the Greek for sphere, in allusion to its globular forms.
Help on Name Pronunciation: Name Pronunciation: Uranosphaerite + Pronunciation Say URANOSPHAERITE
 

Uranosphaerite Image

Click Here for Larger Uranosphaerite Image in a New Browser Window Images:
Click Here for Larger Uranosphaerite Image

Uranosphaerite

Comments: Yellow-orange earthy uranosphaerite crusts.
Location: Kersegalec en Lignol, Vendee, France. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Uranosphaerite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =0.9677:1:0.9848
Help on Cell Dimensions: Cell Dimensions: a = 7.559, b = 7.811, c = 7.693, Z = 4; beta = 92.88° V = 453.65 Den(Calc)= 7.73
Help on Crystal System: Crystal System: Monoclinic - PrismaticH-M Symbol (2/m) Space Group: P 21/n
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.16(1), 1.83(0.8), 3.87(0.7),
Click Here for Large Uranosphaerite Structure Window Crystal Structure:

Mouse
drag1 - LMB Manipulate Structure
drag2 - RMB Resize/Rotate

Keyboard
S - Stereo Pair on/off
H - Help Screen
I - Data Info
A - Atoms On/Off
P - Polyhedra On/Off
B - Bonds On/Off
Help on Above


Hughes K-A , Burns P C , Kolitsch U , The Canadian Mineralogist , 41 (2003) p.677-685, Crystal structure and crystal chemistry of uranosphaerite, Bi(UO2)O2OH, Note: natural sample, Locality: Clara barite and fluorite mine, Black Forest, Germany

View Additional jPOWD Structure files for Uranosphaerite
[1]
 

Physical Properties of Uranosphaerite

Help on Cleavage: Cleavage: {001} Good
Help on Color: Color: Orange, Red orange, Brick red.
Help on Density: Density: 6.36
Help on Habit: Habit: Botryoidal - "Grape-like" rounded forms (e.g.. malachite).
Help on Habit: Habit: Radial - Crystals radiate from a center without producing stellar forms (e.g. stibnite)
Help on Hardness: Hardness: 2-3 - Gypsum-Calcite
Help on Luster: Luster: Greasy (Oily)
Help on Streak: Streak: yellow
 

Optical Properties of Uranosphaerite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.263 (Poor) - where the CI = (1-KPDmeas/KC)
CI calc= -0.04 (Good) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1294,KPDmeas= 0.1572,KC= 0.1244
Ncalc = 1.79 - 1.96
Help on Optical Data: Optical Data: Biaxial (+), a=1.959, b=1.981, g=2.06, bire=0.1010, 2V(Calc)=58, 2V(Meas)=56. Dispersion strong, r < v.
Help on Pleochroism (x): Pleochroism (x): none.
Help on Pleochroism (y): Pleochroism (y): none.
Help on Pleochroism (z): Pleochroism (z): none.
 

Calculated Properties of Uranosphaerite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=6.32 gm/cc
note: Specific Gravity of Uranosphaerite =7.73 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0033191658
Boson Index = 0.9966808342
Help on Photoelectric: Photoelectric: PEUranosphaerite =2,028.56 barns/electron
U=PEUranosphaerite x relectron=12829.37 barns/cc.
Help on Radioactivity: Radioactivity:

GRapi = 3,143,807.17 (Gamma Ray American Petroleum Institute Units)
Concentration of Uranosphaerite per GRapi unit = 318.09 (PPB)

Uranosphaerite 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) 9.68 ± 2.42 grams of pure Uranosphaerite .
Estimated Maximum U.S. Postal Shipping Size (10 mRem/hr limit, Unshielded 100 cm box) 967.51 ±241.88 grams of pure Uranosphaerite .

Estimated Radioactivity from Uranosphaerite - very strong
Specimen
Size
Weight/Volume
(Sphere)
*
Calculated
Activity
Becquerels
(Bq)
Calculated
Activity
Curies (Ci)
Estimated
Activity
GR(api)
Estimated
Exposure
(mRem**)/hr
If Held in Hand
For One Hour
1000 gm / 6.27 cm 80,693,227 2.18E-03 3,143,807.17 1,033.58
100 gm / 2.91 cm 8,069,323 2.18E-04 314,380.72 103.36
10 gm / 1.35 cm 806,932 2.18E-05 31,438.07 10.34
1 gm / 6.27 mm 80,693 2.18E-06 3,143.81 1.03
0.1 gm / 2.91 mm 8,069 2.18E-07 314.38 0.10
0.01 gm / 1.35 mm 807 2.18E-08 31.44 0.01
0.001 gm / 0.63 mm 81 2.18E-09 3.14 0.00

Weight of pure Uranosphaerite in grams (gm) and Calculated Diameter of a Sphere with a Density of 7.73 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
 

Uranosphaerite Classification

Help on  Dana Class: Dana Class: 05.09.01.01 (05)Oxides Containing Uranium and Thorium
  (05.09)with a cation charge of 6+ containing Pb or Bi and some water of hydration or hydroxyl
  (05.09.01)Dana Group
 
05.09.01.01 Uranosphaerite Bi(UO2)O2(OH) P 21/n 2/m
Help on  Strunz Class: Strunz Class: 04.GB.65 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.65 Uranosphaerite Bi(UO2)O2(OH) P 21/n 2/m
 

Other Uranosphaerite Information

Help on References: References: NAME( Dana8) PHYS. PROP.(Dana8, CanMin v 41, p 677) OPTIC PROP.(Dana8)
Help on See Also: See Also: Links to other databases for Uranosphaerite :
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

Search for Uranosphaerite using:

Google
 
Web webmineral.com
[AOL] [Bing] [Dog Pile] [GeoScienceWorld] [HotBot] [Ixquick] [Lycos] [MAMMA] [Scirus] [Teoma] [WebCrawler] [Wikipedia] [YAHOO]

Visit our Advertisers for Uranosphaerite :

A Bijoux Google Search for Uranosphaerite
Adam's Minerals Google Search for Uranosphaerite
Cape Minerals Google Search for Uranosphaerite
Dakota Matrix Minerals Google Search for Uranosphaerite
Excalibur Mineral Corp. Google Search for Uranosphaerite
Exceptional Minerals Google Search for Uranosphaerite
John Betts Fine Minerals Search for Uranosphaerite
McDougall Minerals Google Search for Uranosphaerite
Mineral News Website Link
Rock and Mineral Shows Google Search for Uranosphaerite
Weinrich Minerals, Inc. Google Search for Uranosphaerite

Ask about Uranosphaerite here :
Ask-A-Mineralogist from the Mineralogical Society of America
Mindat.org's Discussion Groups
Original Rockhounds Discussion Group
Rockhounds Discussion Group on Yahoo Groups
Mineral Discussion Forum from Fabre Minerals - also available in Espaņol

Print or Cut-and-Paste your Uranosphaerite Specimen Label here :

Uranosphaerite

Bi(UO2)O2(OH)
Dana No: 05.09.01.01 Strunz No: 04.GB.65
Locality:

 

Notes: