Mineralogy Database

Joliotite Mineral Data

Search Webmineral :
  
Advertisment

General Joliotite Information

Help on Chemical  Formula: Chemical Formula: (UO2)(CO3)•n(H2O), (n=2?)
Help on Composition: Composition: Molecular Weight = 366.07 gm
   Uranium   65.02 %  U    73.76 % UO2
   Hydrogen   1.10 %  H     9.84 % H2O
   Carbon     3.28 %  C    12.02 % CO2
   Oxygen    30.59 %  O
            ______        ______ 
            100.00 %       95.63 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: (UO2)(CO3)•2(H2O)
Help on Environment: Environment: Occurs as crusts on "limonite" and barite at uranium deposits.
Help on IMA Status: IMA Status: Approved IMA 1976
Help on Locality: Locality: Menzenschwald, Schwarzwald, Germany. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for J. Frederic Joliot (1900-1958), French physicist, and I. Joliot-Curie.
Help on Name Pronunciation: Name Pronunciation: Joliotite + Pronunciation Say JOLIOTITE
 

Joliotite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =0.7884:1:0.6106
Help on Cell Dimensions: Cell Dimensions: a = 8.16, b = 10.35, c = 6.32, Z = 4; V = 533.76 Den(Calc)= 4.56
Help on Crystal System: Crystal System: Orthorhombic Space Group: P 222, Pmm2
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 8.09(1), 3.42(0.9), 3.18(0.8),
 

Physical Properties of Joliotite

Help on Cleavage: Cleavage: {100} Distinct
Help on Color: Color: Lemon yellow.
Help on Density: Density: 4.55
Help on Diaphaneity: Diaphaneity: Translucent
Help on Habit: Habit: Scaly - Morphology like fish scales.
Help on Habit: Habit: Spherical - Spherical, rounded aggregates.
Help on Hardness: Hardness: 1.5-2 - Talc-Gypsum
Help on Luminescence: Luminescence: Weakly Fluorescent.
Help on Streak: Streak: yellow
 

Optical Properties of Joliotite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.043 (Good) - where the CI = (1-KPDmeas/KC)
CI calc= -0.041 (Good) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.138,KPDmeas= 0.1383,KC= 0.1326
Ncalc = 1.6
Help on Optical Data: Optical Data: Biaxial (-), a=1.6, b=1.644, g=1.644, bire=0.0440, 2V(Calc)=0, 2V(Meas)=small.
Help on Pleochroism (x): Pleochroism (x): colorless.
Help on Pleochroism (y): Pleochroism (y): colorless.
Help on Pleochroism (z): Pleochroism (z): yellow.
 

Calculated Properties of Joliotite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=3.94 gm/cc
note: Specific Gravity of Joliotite =4.56 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0051910974
Boson Index = 0.9948089026
Help on Photoelectric: Photoelectric: PEJoliotite =1,709.03 barns/electron
U=PEJoliotite x relectron=6,727.28 barns/cc.
Help on Radioactivity: Radioactivity:

GRapi = 4,784,408.53 (Gamma Ray American Petroleum Institute Units)
Concentration of Joliotite per GRapi unit = 209.01 (PPB)

Joliotite 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) 6.36 ± 1.59 grams of pure Joliotite .
Estimated Maximum U.S. Postal Shipping Size (10 mRem/hr limit, Unshielded 100 cm box) 635.75 ±158.94 grams of pure Joliotite .

Estimated Radioactivity from Joliotite - 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 / 7.48 cm 116,391,588 3.15E-03 4,784,408.53 1,572.96
100 gm / 3.47 cm 11,639,159 3.15E-04 478,440.85 157.30
10 gm / 1.61 cm 1,163,916 3.15E-05 47,844.09 15.73
1 gm / 7.48 mm 116,392 3.15E-06 4,784.41 1.57
0.1 gm / 3.47 mm 11,639 3.15E-07 478.44 0.16
0.01 gm / 1.61 mm 1,164 3.15E-08 47.84 0.02
0.001 gm / 0.75 mm 116 3.15E-09 4.78 0.00

Weight of pure Joliotite in grams (gm) and Calculated Diameter of a Sphere with a Density of 4.56 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
 

Joliotite Classification

Help on  Dana Class: Dana Class: 15.01.08.01 (15)Hydrated Carbonates
  (15.01)where A+ (XO3) � x(H2O)
  (15.01.08)Joliotite Group
 
15.01.08.01 Joliotite (UO2)(CO3)•n(H2O),(n=2?) P 222, Pmm2 Ortho
 
15.01.08.02 Blatonite! UO2CO3•(H2O) Unk Hex
 
15.01.08.03 Oswaldpeetersite! (UO2)2CO3(OH)2•4(H2O) P 21/c 2/m
Help on  Strunz Class: Strunz Class: 05.EB.15 05 - CARBONATES (NITRATES)
  05.E - Uranyl Carbonates
  05.EB -UO2:CO3 = 1:1
 
05.EB.15 Joliotite (UO2)(CO3)•n(H2O),(n=2?) P 222, Pmm2 Ortho
 

Other Joliotite Information

Help on References: References: NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990;Dana8) OPTIC PROP.(Dana8)
Help on See Also: See Also: Links to other databases for Joliotite :
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 Joliotite using:

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

Visit our Advertisers for Joliotite :

Ask about Joliotite 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 Español

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

Joliotite

(UO2)(CO3)•n(H2O), (n=2?)
Dana No: 15.01.08.01 Strunz No: 05.EB.15
Locality:

 

Notes:

 

 
   
 


Dakota Matrix
Excalibur Minerals
Exceptional Minerals
Hudson Insitute
John Betts Fine Minerals
Mc Dougall Minerals
Mineral News
Rock and Mineral Shows
Weinrich Minerals, Inc.