Mineralogy Database

Sedovite Mineral Data

Search Webmineral :
  
Advertisment

General Sedovite Information

Help on Chemical  Formula: Chemical Formula: U(MoO4)2
Help on Composition: Composition: Molecular Weight = 557.90 gm
   Uranium     42.66 %  U    51.27 % UO3
   Molybdenum  34.39 %  Mo   51.60 % MoO3
   Oxygen      22.94 %  O
              ______        ______ 
              100.00 %      102.87 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: U(MoO4)2
Help on Environment: Environment: Supergene zone of a U-Mo deposit.
Help on IMA Status: IMA Status: Approved IMA 1965
Help on Locality: Locality: Russia ? Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Georgii Yakolevich Sedov (1877-1914), Russian polar investigator.
Help on Name Pronunciation: Name Pronunciation: Sedovite Say SEDOVITE
 

Sedovite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =0.3032:1:0.5794
Help on Cell Dimensions: Cell Dimensions: a = 3.36, b = 11.08, c = 6.42, Z = 1; V = 239.01 Den(Calc)= 3.88
Help on Crystal System: Crystal System: Orthorhombic Space Group: Unk
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.193(1), 3.37(0.9), 11.04(0.9),
 

Physical Properties of Sedovite

Help on Cleavage: Cleavage: {???} Good
Help on Color: Color: Brown, Reddish brown.
Help on Density: Density: 4.2
Help on Diaphaneity: Diaphaneity: Subopaque
Help on Habit: Habit: Acicular - Occurs as needle-like crystals.
Help on Habit: Habit: Aggregates - Made of numerous individual crystals or clusters.
Help on Habit: Habit: Radial - Crystals radiate from a center without producing stellar forms (e.g. stibnite)
Help on Hardness: Hardness: 3 - Calcite
Help on Luster: Luster: Sub Metallic
Help on Streak: Streak: red brown
 

Optical Properties of Sedovite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.029 (Excellent) - where the CI = (1-KPDmeas/KC)
CI calc= -0.114 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2036,KPDmeas= 0.1881,KC= 0.1828
Ncalc = 1.71 - 1.77
Help on Optical Data: Optical Data: Biaxial (?), b=1.79
 

Calculated Properties of Sedovite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=3.61 gm/cc
note: Specific Gravity of Sedovite =4.20 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.09
Boson Index = 0.91
Help on Photoelectric: Photoelectric: PESedovite =1,186.17 barns/electron
U=PESedovite x relectron=4,286.26 barns/cc.
Help on Radioactivity: Radioactivity:

GRapi = 3,128,855.85 (Gamma Ray American Petroleum Institute Units)
Concentration of Sedovite per GRapi unit = 319.61 (PPB)

Sedovite 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) 9.72 ± 2.43 grams of pure Sedovite .
Estimated Maximum U.S. Postal Shipping Size (10 mRem/hr limit, Unshielded 100 cm box) 972.13 ±243.03 grams of pure Sedovite .

Estimated Radioactivity from Sedovite - 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 / 7.69 cm 76,370,066 2.06E-03 3,128,855.85 1,028.66
100 gm / 3.57 cm 7,637,007 2.06E-04 312,885.59 102.87
10 gm / 1.66 cm 763,701 2.06E-05 31,288.56 10.29
1 gm / 7.69 mm 76,370 2.06E-06 3,128.86 1.03
0.1 gm / 3.57 mm 7,637 2.06E-07 312.89 0.10
0.01 gm / 1.66 mm 764 2.06E-08 31.29 0.01
0.001 gm / 0.77 mm 76 2.06E-09 3.13 0.00

Weight of pure Sedovite in grams (gm) and Calculated Diameter of a Sphere with a Density of 4.20 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
 

Sedovite Classification

Help on  Dana Class: Dana Class: 48.04.01.01 (48)Anhydrous Molybdates and Tungstates
  (48.04)with miscellaneous formulae
  (48.04.01)Dana Group
 
48.04.01.01 Sedovite U(MoO4)2 Unk Ortho
Help on  Strunz Class: Strunz Class: 07.HA.05 07 - SULFATES (SELENATES, TELLURATES)
  07.H - Uranium and Uranyl Molybdates and Wolframates
  07.HA -With U4+
 
07.HA.05 Sedovite U(MoO4)2 Unk Ortho
 

Other Sedovite 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 Sedovite :
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 Sedovite using:

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

Visit our Advertisers for Sedovite :

Ask about Sedovite 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 Sedovite Specimen Label here :

Sedovite

U(MoO4)2
Dana No: 48.04.01.01 Strunz No: 07.HA.05
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.