Seelite-1 Mineral Data (original) (raw)

General Seelite-1 Information

Help on Chemical Formula: Chemical Formula:

Mg[(UO2)(AsO3)x(AsO4)1-x]2•7(H2O)

Help on Composition: Composition:

Molecular Weight = 620.82 gm

Magnesium 3.91 % Mg 6.49 % MgO

Uranium 38.34 % U 43.50 % UO2

Arsenic 18.10 % As 7.97 % As2O3 / 18.51 % As2O5

Hydrogen 2.27 % H 20.31 % H2O

Oxygen 37.37 % O

______ ______

100.00 % 96.78 % = TOTAL OXIDE

Help on Empirical Formula: Empirical Formula:

Mg(UO2)(AsO3)0.52(AsO4)0.5•7(H2O)

Help on Environment: Environment:

Oxidation zone mineral.

Help on IMA Status: IMA Status:

Approved IMA 1993

Help on Locality: Locality:

Talmissi mine, 35 km W of Amarak, Central Iran and the Rabejac uranium deposit, Lodeve, Herault, France. Link to MinDat.org Location Data.

Help on Name Origin: Name Origin:

Named for Paul (1904-1982) and Hilde (1901-1987) Seel, Belgium mineral collectors.

Help on Name Pronunciation: Name Pronunciation:

Seelite-1 Say SEELITE-1

Help on Synonym: Synonym:

IMA1992-005

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Seelite-1 Crystallography

Help on Axial Ratios: Axial Ratios:

a:b:c =2.5781:1:0.9432

Help on Cell Dimensions: Cell Dimensions:

a = 18.207, b = 7.062, c = 6.661, Z = 3; beta = 99.65° V = 844.34 Den(Calc)= 3.66

Help on Crystal System: Crystal System:

Monoclinic - PrismaticH-M Symbol (2/m) Space Group: C 2/m

Help on X Ray Diffraction: X Ray Diffraction:

By Intensity(I/Io): 9.05(1), 1.92(0.8), 4.44(0.8),

Help on Forms: Forms:

Mouse
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Drag2 - Resize
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Physical Properties of Seelite-1

Help on Color: Color:

Yellow.

Help on Density: Density:

3.7

Help on Diaphaneity: Diaphaneity:

Transparent to Translucent

Help on Hardness: Hardness:

3 - Calcite

Help on Luster: Luster:

Vitreous (Glassy)

Optical Properties of Seelite-1

Help on Gladstone-Dale: Gladstone-Dale:

CI meas= -0.078 (Fair) - where the CI = (1-KPDmeas/KC)
CI calc= -0.09 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.19,KPDmeas= 0.1879,KC= 0.1743
Ncalc = 1.64

Help on Optical Data: Optical Data:

Biaxial (-), a=1.602-1.61, b=1.73-1.737, g=1.74-1.753, bire=0.1380-0.1430

Calculated Properties of Seelite-1

Help on Electron Density: Electron Density:

Bulk Density (Electron Density)=3.38 gm/cc
note: Specific Gravity of Seelite-1 =3.70 gm/cc.

Help on Fermion Index: Fermion Index:

Fermion Index = 0.006858331
Boson Index = 0.993141669

Help on Photoelectric: Photoelectric:

PESeelite-1 = 965.43 barns/electron
U=PESeelite-1 x relectron=3,262.42 barns/cc.

Help on Radioactivity: Radioactivity:

GRapi = 2,984,810.91 (Gamma Ray American Petroleum Institute Units)
Concentration of Seelite-1 per GRapi unit = 335.03 (PPB)

Seelite-1 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) 10.19 ± 2.55 grams of pure Seelite-1 .
Estimated Maximum U.S. Postal Shipping Size(10 mRem/hr limit, Unshielded 100 cm box) 1019.0 ±254.76 grams of pure Seelite-1 .

Estimated Radioactivity from Seelite-1 - very strong

SpecimenSizeWeight/Volume(Sphere) * CalculatedActivityBecquerels(Bq) CalculatedActivityCuries (Ci) EstimatedActivityGR(api) EstimatedExposure(mRem**)/hrIf Held in HandFor One Hour
1000 gm / 8.02 cm 68,630,615 1.85E-03 2,984,810.91 981.31
100 gm / 3.72 cm 6,863,062 1.85E-04 298,481.09 98.13
10 gm / 1.73 cm 686,306 1.85E-05 29,848.11 9.81
1 gm / 8.02 mm 68,631 1.85E-06 2,984.81 0.98
0.1 gm / 3.72 mm 6,863 1.85E-07 298.48 0.10
0.01 gm / 1.73 mm 686 1.85E-08 29.85 0.01
0.001 gm / 0.80 mm 69 1.85E-09 2.98 0.00

Weight of pure Seelite-1 in grams (gm) and Calculated Diameter of a Sphere with a Density of 3.70 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

Seelite-1 Classification

Help on Dana Class: Dana Class:

40.02a.12.01 (40)Hydrated Phosphates, etc

(40.02a)where A++ (B++)2 (XO4) � x(H2O), containing (UO2)++

(40.02a.12)Dana Group

40.02a.12.01 Seelite-1 Mg[(UO2)(AsO3)x(AsO4)1-x]2•7(H2O) C 2/m 2/m

Help on Strunz Class: Strunz Class:

04.JD.10 04 - OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodate

04.J - Arsenites, Antimonites, Bismuthites, Sulfites,

04.JD -Arsenites, antimonites, bismuthites; with additional anions, with H2O

04.JD.10 Seelite-2 Mg(UO2)(AsO3)x(AsO4)1-x•7(H2O)(x=0.7) C 2/m 2/m

04.JD.10 Seelite-1 Mg[(UO2)(AsO3)x(AsO4)1-x]2•7(H2O) C 2/m 2/m

Other Seelite-1 Information

Help on References: References:

NAME( Dana8) PHYS. PROP.(Am.Min.,Vol.79,p1012,1994) OPTIC PROP.(Am.Min.,Vol.79,p1012,1994)

Help on See Also: See Also:

Links to other databases for Seelite-1 :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - GeoScienceWorld
4 - Google Images
5 - Google Scholar
6 - MinDAT
7 - Mineralienatlas (Deutsch)
8 - Online Mineral Museum
9 - QUT Mineral Atlas
10 - Ruff.Info
11 - Uranium Minerals

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Ask about Seelite-1 here :
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Rockhounds Discussion Group on Yahoo Groups
Mineral Discussion Forum from Fabre Minerals - also available in Espa�ol

Print or Cut-and-Paste your Seelite-1 Specimen Label here :

Seelite-1

Mg[(UO2)(AsO3)x(AsO4)1-x]2•7(H2O)
Dana No: 40.02a.12.01 Strunz No: 04.JD.10
Locality:

Notes: