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.
 

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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 DipyramidalH-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
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:

relectron=3.19 gm/cc
note: rSodium meta-autunite =3.58 gm/cc.

Help on Fermion Index Fermion Index Fermion Index = 0.00396
Boson Index = 0.99604
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 = 4,009,172.73 (Gamma Ray American Petroleum Institute Units)

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
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 / 8.11 cm 94,463,795 2.55E-03 4,009,172.73 1,318.08
100 gm / 3.76 cm 9,446,380 2.55E-04 400,917.27 131.81
10 gm / 1.75 cm 944,638 2.55E-05 40,091.73 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: 40.2a.1.4 (40)Hydrated Phosphates, etc
  (40.2a)where A++ (B++)2 (XO4) · x(H2O), containing (UO2)++
  (40.2a.1)Dana Group
 
40.2a.1.1 Autunite Ca(UO2)2(PO4)2·10-12(H2O) I 4/mmm 4/m 2/m 2/m
 
40.2a.1.2 Meta-autunite Ca(UO2)2(PO4)2·2-6(H2O) P 4/nmm 4/m 2/m 2/m
 
40.2a.1.3 Pseudo-autunite* (H3O)4Ca2(UO2)2(PO4)4·5(H2O)(?) Unk Ortho
 
40.2a.1.4 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: VII/E.02-95 VII - Phosphates, Arsenates and Vanadates
  VII/E - Uranylphosphates and uranylvanadates with [UO2]2+ - [PO4 | AsO4]3- and [UO2]2+ - [V2O8]6-
  VII/E.02 - Meta-autunite group
 
VII/E.02-10 Metanovacekite Mg(UO2)2(AsO4)2·4-8(H2O) P 4/n 4/m
 
VII/E.02-20 Bassetite Fe(UO2)2(PO4)2·8(H2O) P 21/m 2/m
 
VII/E.02-30 Metakahlerite Fe(UO2)2(AsO4)2·8(H2O) P 4/mmm 4/m 2/m 2/m
 
VII/E.02-40 Lehnerite Mn[UO2/PO4]2·8(H2O) P 21/n 2/m
 
VII/E.02-50 Metakirchheimerite Co(UO2)2(AsO4)2·8(H2O) P 4/mmm 4/m 2/m 2/m
 
VII/E.02-60 Metatorbernite Cu(UO2)2(PO4)2·8(H2O) P 4/n 4/m
 
VII/E.02-70 Metazeunerite Cu(UO2)2(AsO4)2·8(H2O) P 4/n 4/m
 
VII/E.02-80 Metalodevite Zn(UO2)2(AsO4)2·10(H2O) P 41/m 4/m
 
VII/E.02-90 Meta-autunite Ca(UO2)2(PO4)2·2-6(H2O) P 4/nmm 4/m 2/m 2/m
 
VII/E.02-95 Sodium meta-autunite Na2(UO2)2(PO4)2·6-8(H2O) P 4/nmm 4/m 2/m 2/m
 
VII/E.02-100 Meta-uranospinite Ca(UO2)2(AsO4)2·8(H2O) P 4/nmm 4/m 2/m 2/m
 
VII/E.02-110 Meta-uranocircite Ba(UO2)2(PO4)2·6-8(H2O) P 21 2
 
VII/E.02-120 Metaheinrichite Ba(UO2)2(AsO4)2·8(H2O) P 41/? 4/m
 
VII/E.02-130 Sodium-uranospinite (Na2,Ca)(UO2)2(AsO4)2·5(H2O) P 4/nmm 4/m 2/m 2/m
 
VII/E.02-140 Meta-ankoleite K2(UO2)2(PO4)2·6(H2O) P 4/nmm 4/m 2/m 2/m
 
VII/E.02-150 Abernathyite K(UO2)(AsO4)·4(H2O) P 4/ncc 4/m 2/m 2/m
 
VII/E.02-160 Uramphite (NH4)(UO2)(PO4)·3(H2O) P 4/nmm 4/m 2/m 2/m
 
VII/E.02-170 Chernikovite (H3O)2(UO2)2(PO4)2·6(H2O) P 4/nmm 4/m 2/m 2/m
 
VII/E.02-180 Pseudo-autunite* (H3O)4Ca2(UO2)2(PO4)4·5(H2O)(?) Unk Ortho
 
VII/E.02-190 Ulrichite CaCu(UO2)(PO4)2·4(H2O) C 2/m 2/m
 

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

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Print or Cut-and-Paste your Sodium meta-autunite Specimen Label here :

Sodium meta-autunite

Na2(UO2)2(PO4)2·6-8(H2O)
Dana No: 40.2a.1.4 Strunz No: VII/E.02-95
Locality:

 

Notes:

 

 
   
 
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