Mineralogy Database

Swamboite Mineral Data

Search Webmineral :
  
Advertisment

General Swamboite Information

Help on Chemical  Formula: Chemical Formula: U++++++H6(UO2)6(SiO4)6•30(H2O)
Help on Composition: Composition: Molecular Weight = 2,957.20 gm
   Uranium   56.34 %  U    54.79 % UO2 /  9.67 % UO3
   Silicon    5.70 %  Si   12.19 % SiO2
   Hydrogen   2.25 %  H    20.10 % H2O
   Oxygen    35.71 %  O
            ______        ______ 
            100.00 %       96.75 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: UH6(UO2)6(SiO4)6•30(H2O)
Help on Environment: Environment: Alteration product of other uranium minerals.
Help on IMA Status: IMA Status: Approved IMA 1981
Help on Locality: Locality: Swambo, Shaba, Zaire. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for the locality.
Help on Name Pronunciation: Name Pronunciation: Swamboite + Pronunciation Say SWAMBOITE
 

Swamboite Image

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

  Swamboite

Comments: Yellow crystals of Swamboite to 0.5 mm across.
Location: Swambo, Katanga, Dem. Rep. of the Congo. Scale: Picture size 1.5 cm.
© John Veevaert

Swamboite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =0.84:1:0.958
Help on Cell Dimensions: Cell Dimensions: a = 17.64, b = 21, c = 20.12, Z = 6; beta = 103.4° V = 7,250.34 Den(Calc)= 4.06
Help on Crystal System: Crystal System: Monoclinic - Prismatic H-M Symbol (2/m) Space Group: P 21/a
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 8.67(1), 4.32(0.8), 4.76(0.8),
 

Physical Properties of Swamboite

Help on Cleavage: Cleavage: {201} Good
Help on Color: Color: Light yellow.
Help on Density: Density: 4
Help on Diaphaneity: Diaphaneity: Transparent to Translucent
Help on Habit: Habit: Acicular - Occurs as needle-like crystals.
Help on Hardness: Hardness: 2.5 - Finger Nail
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: white
 

Optical Properties of Swamboite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.023 (Excellent) - where the CI = (1-KPDmeas/KC)
CI calc= -0.008 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1612,KPDmeas= 0.1637,KC= 0.1599
Ncalc = 1.64 - 1.65
Help on Optical Data: Optical Data: Biaxial (-), a=1.64, b=1.661, g=1.663, bire=0.0230, 2V(Calc)=32, 2V(Meas)=30.
Help on Pleochroism (x): Pleochroism (x): colorless.
Help on Pleochroism (y): Pleochroism (y): pale yellow.
Help on Pleochroism (z): Pleochroism (z): pale yellow.
 

Calculated Properties of Swamboite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=3.63 gm/cc
note: Specific Gravity of Swamboite =4.06 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0068926874
Boson Index = 0.9931073126
Help on Photoelectric: Photoelectric: PESwamboite =1,430.04 barns/electron
U=PESwamboite x relectron=5,191.06 barns/cc.
Help on Radioactivity: Radioactivity:

GRapi = 4,293,995.61 (Gamma Ray American Petroleum Institute Units)
Concentration of Swamboite per GRapi unit = 232.88 (PPB)

Swamboite 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) 7.08 ± 1.77 grams of pure Swamboite .
Estimated Maximum U.S. Postal Shipping Size (10 mRem/hr limit, Unshielded 100 cm box) 708.35 ±177.09 grams of pure Swamboite .

Estimated Radioactivity from Swamboite - 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 / 7.78 cm 100,855,619 2.73E-03 4,293,995.61 1,411.72
100 gm / 3.61 cm 10,085,562 2.73E-04 429,399.56 141.17
10 gm / 1.68 cm 1,008,556 2.73E-05 42,939.96 14.12
1 gm / 7.78 mm 100,856 2.73E-06 4,294.00 1.41
0.1 gm / 3.61 mm 10,086 2.73E-07 429.40 0.14
0.01 gm / 1.68 mm 1,009 2.73E-08 42.94 0.01
0.001 gm / 0.78 mm 101 2.73E-09 4.29 0.00

Weight of pure Swamboite in grams (gm) and Calculated Diameter of a Sphere with a Density of 4.06 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
 

Swamboite Classification

Help on  Dana Class: Dana Class: 53.03.01.08 (53)Nesosilicate Insular SiO4 Groups and Other Anions of Complex Cations
  (53.03)with (UO2)
  (53.03.01)Uranophane group
 
53.03.01.01 Kasolite Pb(UO2)SiO4•(H2O) P 21/a 2/m
 
53.03.01.02 Uranophane Ca(UO2)2SiO3(OH)2•5(H2O) P 21 2
 
53.03.01.03 Sklodowskite (H3O)2Mg(UO2)2(SiO4)2•4(H2O) C 2/m 2/m
 
53.03.01.04 Cuprosklodowskite Cu[(UO2)(SiO2OH)]2•6(H2O) P1 1
 
53.03.01.05 Boltwoodite HK(UO2)(SiO4)•1.5(H2O) P 21 2
 
53.03.01.06 Natroboltwoodite (H3O)(Na,K)(UO2)SiO4•(H2O) P 212121 2 2 2
 
53.03.01.07 Oursinite (Co,Mg)(H3O)2[(UO2)SiO4]2•3(H2O) Aba2,Abam Ortho
 
53.03.01.08 Swamboite UH6(UO2)6(SiO4)6•30(H2O) P 21/a 2/m
 
53.03.01.09 Uranophane-beta Ca[(UO2)SiO3(OH)]2•(H2O) P 21/a 2/m
Help on  Strunz Class: Strunz Class: 09.AK.20 09 - SILICATES (Germanates)
  09.A - Nesosilicates
  09.AK -Uranyl neso- and polysilicates
 
09.AK.20 Swamboite UH6(UO2)6(SiO4)6•30(H2O) P 21/a 2/m
 

Other Swamboite 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 Swamboite :
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 Swamboite using:

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

Visit our Advertisers for Swamboite :

Ask about Swamboite 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 Swamboite Specimen Label here :

Swamboite

U++++++H6(UO2)6(SiO4)6•30(H2O)
Dana No: 53.03.01.08 Strunz No: 09.AK.20
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.