Bauranoite Mineral Data + Say BAURANOITE


[Newest Minerals] [Equipment] [Analytical Services] [About Us] [Mineral Gallery] [eBay Store]
See Also: [Diamond Crystals] [Mineral News] [Hudson Institute] [Minerals on CDROM]
Rare Minerals, Meteorites, Equipment and Analytical Services
Excalibur Mineral Company, World leaders in the supply of rare species
Serving the scientific and collector communities since 1974

General Bauranoite Information

Help on Chemical  Formula: Chemical Formula: BaU2O7·4-5(H2O)
Help on Composition: Composition: Molecular Weight = 806.45 gm
   Barium    17.03 %  Ba   19.01 % BaO
   Uranium   59.03 %  U    66.97 % UO2
   Hydrogen   1.12 %  H    10.05 % H2O
   Oxygen    22.82 %  O
            ______        ______ 
            100.00 %       96.03 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: BaU2O7·4.5(H2O)
Help on Environment: Environment: Secondary mineral replacing uraninite.
Help on IMA Status: IMA Status: Approved IMA 1972
Help on Locality: Locality: U-Mo deposit in Russia. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for its composition of (Ba)(Urano)ite.
 

Bauranoite Image

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

Bauranoite

Comments: Massive, orange-brown crystalline aggregate of bauranoite.
Location: Strel'tsovskoye ore field, Krasnokamensk, Chitinskaya Oblast', Transbaikalia (Zabaykalye), Eastern-Siberian Region, Russia. Scale: Picture size 6 mm.
© Thomas Witzke / Abraxas-Verlag

Bauranoite Crystallography

Help on Crystal System: Crystal System: TriclinicSpace Group: Triclinic ?
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.09(1), 3.41(0.7), 1.98(0.6),1.667(0.6), 1.723(0.6), 1.908(0.6), 1.948(0.6), 1.325(0.5),
 

Physical Properties of Bauranoite

Help on Color: Color: Reddish brown.
Help on Density: Density: 5.28 - 5.42, Average = 5.35
Help on Habit: Habit: Massive - Granular - Common texture observed in granite and other igneous rock.
Help on Hardness: Hardness: 5 - Apatite
 

Optical Properties of Bauranoite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.37 (Poor) - where the CI = (1-KPDmeas/KC)
KPDmeas= 0.1719,KC= 0.1255
Help on Optical Data: Optical Data: Biaxial (-), a=1.911-1.916, g=1.92-1.932, bire=0.0090-0.0160, 2V(Meas)=81.
 

Calculated Properties of Bauranoite

Help on Electron Density: Electron Density:

relectron=4.52 gm/cc
note: rBauranoite =5.35 gm/cc.

Help on Fermion Index Fermion Index Fermion Index = 0.0347
Boson Index = 0.9653
Help on Photoelectric: Photoelectric:

PEBauranoite =1,664.39 barns/electron
U=PEBauranoite x relectron=7,530.39 barns/cc.

Help on Radioactivity: Radioactivity:

GRapi = 4,255,234.15 (Gamma Ray American Petroleum Institute Units)

Bauranoite 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) 7.15 ± 1.79 grams of pure Bauranoite .
Estimated Maximum U.S. Postal Shipping Size (10 mRem/hr limit, Unshielded 100 cm box) 714.81 ±178.70 grams of pure Bauranoite .

Estimated Radioactivity from Bauranoite - 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 / 7.09 cm 105,666,081 2.86E-03 4,255,234.15 1,398.98
100 gm / 3.29 cm 10,566,608 2.86E-04 425,523.41 139.90
10 gm / 1.53 cm 1,056,661 2.86E-05 42,552.34 13.99
1 gm / 7.09 mm 105,666 2.86E-06 4,255.23 1.40
0.1 gm / 3.29 mm 10,567 2.86E-07 425.52 0.14
0.01 gm / 1.53 mm 1,057 2.86E-08 42.55 0.01
0.001 gm / 0.71 mm 106 2.86E-09 4.26 0.00

Weight of pure Bauranoite in grams (gm) and Calculated Diameter of a Sphere with a Density of 5.35 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
 

Bauranoite Classification

Help on  Dana Class: Dana Class: 5.4.2.2 (5)Oxides Containing Uranium and Thorium
  (5.4)with alkaline-earth elements (hydrated)
  (5.4.2)Dana Group
 
5.4.2.1 Calciouranoite (Ca,Ba,Pb)U2O7·5(H2O) Unk Tri
 
5.4.2.2 Bauranoite BaU2O7·4-5(H2O) Triclinic ? Tri
Help on  Strunz Class: Strunz Class: IV/H.06-30 IV - Oxides
  IV/H - Uranyl ([UO2]2+) hydroxides and hydrates
  IV/H.06 - Calciouranoite - Wölsendorfite series
 
IV/H.06-10 Calciouranoite (Ca,Ba,Pb)U2O7·5(H2O) Unk Tri
 
IV/H.06-20 Metacalciouranoite (Ca,Na,Ba)U2O7·2(H2O) Ortho ? Ortho
 
IV/H.06-30 Bauranoite BaU2O7·4-5(H2O) Triclinic ? Tri
 
IV/H.06-40 Wolsendorfite (Pb,Ba,Ca)U2O7·2(H2O) Unk Ortho
 

Other Bauranoite Information

Help on References: References: NAME( Dana8) PHYS. PROP.(Dana8) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)
Help on See Also: See Also: Links to other databases for Bauranoite :
1 -Am. Min. Crystal Structure Database 2 -Athena 3 - EUROmin Project 4 -Google Images 5 -Google Scholar 6 -MinDAT 7 -MinMax(Deutsch) 8 -MinMax(English) 9 -Mineralienatlas (Deutsch) 10 -QUT Mineral Atlas 11 - Uranium Minerals 12 -École des Mines de Paris

Search for Bauranoite using:

Google
 
Web webmineral.com
[ALTAVISTA] [AOL] [About.com] [All-The-Web] [HotBot] [Ixquick] [LookSmart] [MAMMA] [MSN.COM] [Netscape] [Teoma] [Wikipedia] [YAHOO]

Visit our Advertisers for Bauranoite :
AA Mineral Specimens
B and L Minerals
Dan Weinrich Fine Minerals
Dan Weinrich Auctions
e-Rocks Auctions
Excalibur Minerals
Exceptional Minerals
Fabre Minerals
Greenside Minerals
John Betts Fine Minerals
Masons Minerals
Minernet.it
Mineral News
Mineral of the Month Club
MineralsWeb Fine Minerals
Rockshop.cz Kalat Fine Minerals
T G Fine Minerals
Wrights Rock Shop

Translate Bauranoite Mineral Data :

Ask about Bauranoite 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 Bauranoite Specimen Label here :

Bauranoite

BaU2O7·4-5(H2O)
Dana No: 5.4.2.2 Strunz No: IV/H.06-30
Locality:

 

Notes:

 

 
   
 
Go To Webmineral Home Crystallography X-Ray D-Spacing Table Chemical Composition
Dana Classification Strunz Classification Table of Mineral Properties Alphabetical Listing of Minerals
Search Webmineral Photo Gallery of Mineral Images Help Files Links