Swamboite Mineral Data

Advertisment

Dakota Matrix was founded in 1996 and has offered systematic and rare mineral specimens online since 1998.

Adamsminerals.com- Online mineral store front for mineral collectors

McDougall Minerals sells high-quality mineral specimens from all over the world to collectors of all levels, from beginners to connoisseurs

Weinrich Minerals, A Dealer in Fine Mineral Specimens - Since 1989. We buy collections and single high quality specimens.

General Swamboite Information

Chemical Formula:

U++++++H6(UO2)6(SiO4)6•30(H2O)

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

Empirical Formula:

UH₆(UO₂)₆(SiO₄)₆•30(H₂O)

Environment:

Alteration product of other uranium minerals.

IMA Status:

Approved IMA 1981

Locality:

Swambo, Shaba, Zaire. Link to MinDat.org Location Data.

Name Origin:

Named for the locality.

Name Pronunciation:

Swamboite + Pronunciation

Swamboite Image

Images:

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

Axial Ratios:

a:b:c =0.84:1:0.958

Cell Dimensions:

a = 17.64, b = 21, c = 20.12, Z = 6; beta = 103.4° V = 7,250.34 Den(Calc)= 4.06

Crystal System:

Monoclinic - PrismaticH-M Symbol (2/m) Space Group: P 2₁/a

$Help on X Ray Diffraction:$ X Ray Diffraction:

By Intensity(I/I_o): 8.67(1), 4.32(0.8), 4.76(0.8),

Physical Properties of Swamboite

Cleavage:

{201} Good

Color:

Light yellow.

Density:

Diaphaneity:

Transparent to Translucent

Habit:

Acicular - Occurs as needle-like crystals.

Hardness:

2.5 - Finger Nail

Luster:

Vitreous (Glassy)

Streak:

white

Optical Properties of Swamboite

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

Optical Data:

Biaxial (-), a=1.64, b=1.661, g=1.663, bire=0.0230, 2V(Calc)=32, 2V(Meas)=30.

Pleochroism (x):

colorless.

Pleochroism (y):

pale yellow.

Pleochroism (z):

pale yellow.

Calculated Properties of Swamboite

Electron Density:

Bulk Density (Electron Density)=3.63 gm/cc
note: Specific Gravity of Swamboite =4.06 gm/cc.

Fermion Index:

Fermion Index = 0.0068926874
Boson Index = 0.9931073126

Photoelectric:

PE_Swamboite=1,430.04 barns/electron
U=PE_Swamboite x r_electron=5,191.06 barns/cc.

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 Becquerels (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

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

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

References:

NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Dana8)

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:

[AOL] [Bing] [Dog Pile] [GeoScienceWorld] [HotBot] [Ixquick] [Lycos] [MAMMA] [Scirus] [Teoma] [WebCrawler] [Wikipedia] [YAHOO]

Visit our Advertisers for Swamboite :

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

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: