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Sodium meta-autunite Mineral Data

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General Sodium meta-autunite Information

Help on Chemical  Formula: Chemical Formula: Na2(UO2)2(PO4)2•6-8(H2O)
Help on Composition: Composition: Molecular Weight = 902.08 gm
   Sodium       5.10 %  Na    6.87 % Na2O
   Uranium     52.77 %  U    59.87 % UO2
   Phosphorus   6.87 %  P    15.74 % P2O5
   Hydrogen     1.56 %  H    13.98 % H2O
   Oxygen      33.70 %  O
              ______        ______ 
              100.00 %       96.45 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Na2(UO2)2(PO4)2•7(H2O)
Help on Environment: Environment: Secondary uranium mineral.
Help on IMA Status: IMA Status: Approved IMA 1987 (Dana # Added)
Help on Locality: Locality: Kuruk uranium deposit in Khodzhent, Samgar Steppe, northern Tadjikistan. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named after sodium autunite with the loss of hydration water.

Sodium meta-autunite Crystallography

Help on Axial Ratios: Axial Ratios: a:c = 1:1.23499
Help on Cell Dimensions: Cell Dimensions: a = 6.996, c = 8.64, Z = 1; V = 422.88 Den(Calc)= 3.54
Help on Crystal System: Crystal System: Tetragonal - Ditetragonal Dipyramidal H-M Symbol (4/m 2/m 2/m) Space Group: P 4/nmm
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.67(1), 1.566(0.8), 2.675(0.8),

Physical Properties of Sodium meta-autunite

Help on Color: Color: Yellow, Lettuce yellow.
Help on Density: Density: 3.584
Help on Hardness: Hardness: 2-2.5 - Gypsum-Finger Nail
Help on Luster: Luster: Vitreous - Pearly

Optical Properties of Sodium meta-autunite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.063 (Fair) - where the CI = (1-KPDmeas/KC)
CI calc= -0.076 (Fair) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1606,KPDmeas= 0.1586,KC= 0.1492
Ncalc = 1.53
Help on Optical Data: Optical Data: Uniaxial (-), e=1.559, w=1.578, bire=0.0190.

Calculated Properties of Sodium meta-autunite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=3.19 gm/cc
note: Specific Gravity of Sodium meta-autunite =3.58 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0039637605
Boson Index = 0.9960362395
Help on Photoelectric: Photoelectric: PESodium meta-autunite =1,343.85 barns/electron
U=PESodium meta-autunite x relectron=4,292.67 barns/cc.
Help on Radioactivity: Radioactivity:

GRapi = 4,009,174.19 (Gamma Ray American Petroleum Institute Units)
Concentration of Sodium meta-autunite per GRapi unit = 249.43 (PPB)

Sodium meta-autunite 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) 7.59 ± 1.90 grams of pure Sodium meta-autunite .
Estimated Maximum U.S. Postal Shipping Size (10 mRem/hr limit, Unshielded 100 cm box) 758.68 ±189.67 grams of pure Sodium meta-autunite .

Estimated Radioactivity from Sodium meta-autunite - very strong
Curies (Ci)
If Held in Hand
For One Hour
1000 gm / 8.11 cm 94,463,806 2.55E-03 4,009,174.19 1,318.08
100 gm / 3.76 cm 9,446,381 2.55E-04 400,917.42 131.81
10 gm / 1.75 cm 944,638 2.55E-05 40,091.74 13.18
1 gm / 8.11 mm 94,464 2.55E-06 4,009.17 1.32
0.1 gm / 3.76 mm 9,446 2.55E-07 400.92 0.13
0.01 gm / 1.75 mm 945 2.55E-08 40.09 0.01
0.001 gm / 0.81 mm 94 2.55E-09 4.01 0.00

Weight of pure Sodium meta-autunite in grams (gm) and Calculated Diameter of a Sphere with a Density of 3.58 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

Sodium meta-autunite Classification

Help on  Dana Class: Dana Class: 40.02a.01.04 (40)Hydrated Phosphates, etc
  (40.02a)where A++ (B++)2 (XO4) � x(H2O), containing (UO2)++
  (40.02a.01)Autunite Group
40.02a.01.01 Autunite Ca(UO2)2(PO4)2•10-12(H2O) I 4/mmm 4/m 2/m 2/m
40.02a.01.02 Meta-autunite Ca(UO2)2(PO4)2•2-6(H2O) P 4/nmm 4/m 2/m 2/m
40.02a.01.03 Pseudo-autunite* (H3O)4Ca2(UO2)2(PO4)4•5(H2O)(?) Unk Ortho
40.02a.01.04 Sodium meta-autunite! Na2(UO2)2(PO4)2•6-8(H2O) P 4/nmm 4/m 2/m 2/m
Help on  Strunz Class: Strunz Class: 08.XX.00 08 - PHOSPHATES, ARSENATES, VANADATES
  08.XX -Phosphate, Hydrated
08.XX.00 Arsenobismite? Bi2(AsO4)(OH)3 Unk Ortho
08.XX.00 Coeruleolactite (Ca,Cu)Al6(PO4)4(OH)8•4-5(H2O) P1 1
08.XX.00 Cheralite-(Ce)? (Ce,Ca,Th)(P,Si)O4 P 21/n 2/m
08.XX.00 Chernovite-(Ce)* (Ce,Y)(AsO4) I 41/amd 4/m 2/m 2/m
08.XX.00 Kerstenite? PbSeO4(?) P nma 2/m 2/m 2/m
08.XX.00 Laubmannite? Fe3Fe6(PO4)4(OH)12 Unk Ortho
08.XX.00 Spodiosite? Ca2(PO4)F Pbcm 2/m 2/m 2/m
08.XX.00 Pseudo-autunite* (H3O)4Ca2(UO2)2(PO4)4•5(H2O)(?) Unk Ortho
08.XX.00 Viseite Ca10Al24(SiO4)6(PO4)7O22F3•72(H2O)(?) I a3d 4/m 3 2/m
08.XX.00 Vanuranylite? (H3O,Ba,Ca,K)1.6(UO2)2V2O8•4(H2O)(?) C 2/c ? 2/m
08.XX.00 Sodium-autunite Na2(UO2)2(PO4)2•8(H2O) P 4/nmm 4/m 2/m 2/m
08.XX.00 Sodium meta-autunite! Na2(UO2)2(PO4)2•6-8(H2O) P 4/nmm 4/m 2/m 2/m
08.XX.00 Slavkovite! Cu13(AsO4)6(AsO3OH)4•23(H2O) P1 1
08.XX.00 IMA2000-020! Fe4[AsO3OH]5[AsO2(OH)2]2•20(H2O) Ortho Ortho
08.XX.00 Lewisite! (Ca,Fe,Na)2(Sb,Ti)2O7 F d3m 4/m 3 2/m
08.XX.00 Kamarizaite! Fe3(AsO4)2(OH)3•3H2O Pccm, Pcc2, Pcmm, Pcm21 Ortho
08.XX.00 Lapeyreite! Cu3O[AsO3(OH)]2•H2O C 2/m 2/m
08.XX.00 IMA2008-063 Pb[Zn0.25,[]0.75]Fe3H(AsO4)2(OH)6 C 2/c 2/m
08.XX.00 IMA2009-002! Cu3(AsO4)2 P 21/c 2/m
08.XX.00 IMA2009-005 (Y,Ca,REE)5[(Si,P)O4]3F P 63/m 6/m 2/m 2/m
08.XX.00 IMA2009-016 Cu4H(AsO4)2(OH)3•H2O P1 1

Other Sodium meta-autunite Information

Help on References: References: PHYS. PROP.(Am.Min.,Vol.80,p1329,1994) OPTIC PROP.(Am.Min.,Vol.80,p1329,1994)
Help on See Also: See Also: Links to other databases for Sodium meta-autunite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - Google Images
4 - Google Scholar
5 - MinDAT
6 - MinMax(Deutsch)
7 - MinMax(English)
8 - Mineralienatlas (Deutsch)
9 - QUT Mineral Atlas
10 - Ruff.Info

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Sodium meta-autunite

Dana No: 40.02a.01.04 Strunz No: 08.XX.00