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Metauranospinite Mineral Data

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General Metauranospinite Information

Help on Chemical  Formula: Chemical Formula: Ca(UO2)2(AsO4)2•8(H2O)
Help on Composition: Composition: Molecular Weight = 1,002.09 gm
   Calcium    4.00 %  Ca    5.60 % CaO
   Uranium   47.51 %  U    53.89 % UO2
   Arsenic   14.95 %  As   22.94 % As2O5
   Hydrogen   1.61 %  H    14.38 % H2O
   Oxygen    31.93 %  O
            ______        ______ 
            100.00 %       96.81 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Ca(UO2)2(AsO4)2•8(H2O)
Help on Environment: Environment: Secondary mineral of the oxide zone in a hydrothermal polymetallic barite�fluorite deposit.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1957
Help on Locality: Locality: Clara mine, near Oberwolfach, Black Forest, Germany. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: The prefix meta indicates the dehydration product of uranospinite.
Help on Synonym: Synonym: Meta-uranospinite - Renamed as Metauranospinite by Mineralogical Record, v330 (2008), p131

Metauranospinite Image

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  Uranospinite   Metauranospinite

Comments: Translucent platy uranospinite (probably dehydrated to metauranospinite) microcrystals on matrix.
Location: Grube Buhlskopf, near Ellweiler, Rheinland-Pfalz, Germany. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Metauranospinite Crystallography

Help on Axial Ratios: Axial Ratios: a:c = 1:2.38095
Help on Cell Dimensions: Cell Dimensions: a = 7.14, c = 17, Z = 2; V = 866.65 Den(Calc)= 3.84
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): 3.57(1), 8.65(1), 3.31(0.9),

Physical Properties of Metauranospinite

Help on Color: Color: Yellow, Siskin green.
Help on Diaphaneity: Diaphaneity: Transparent to Translucent
Help on Hardness: Hardness: 2-3 - Gypsum-Calcite
Help on Luster: Luster: Pearly

Optical Properties of Metauranospinite

Help on Gladstone-Dale: Gladstone-Dale: CI calc= -0.048 (Good) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1589,KC= 0.1517
Ncalc = 1.58
Help on Optical Data: Optical Data: Biaxial (-), a=1.591, b=1.619, g=1.621, bire=0.0300, 2V(Calc)=28, 2V(Meas)=0-5.

Calculated Properties of Metauranospinite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=3.42 gm/cc
note: Specific Gravity of Metauranospinite =3.84 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0036301331
Boson Index = 0.9963698669
Help on Photoelectric: Photoelectric: PEMetauranospinite =1,222.30 barns/electron
U=PEMetauranospinite x relectron=4,177.97 barns/cc.
Help on Radioactivity: Radioactivity:

GRapi = 3,604,469.20 (Gamma Ray American Petroleum Institute Units)
Concentration of Metauranospinite per GRapi unit = 277.43 (PPB)

Metauranospinite 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) 8.44 ± 2.11 grams of pure Metauranospinite .
Estimated Maximum U.S. Postal Shipping Size (10 mRem/hr limit, Unshielded 100 cm box) 843.86 ±210.96 grams of pure Metauranospinite .

Estimated Radioactivity from Metauranospinite - very strong
Curies (Ci)
If Held in Hand
For One Hour
1000 gm / 7.92 cm 85,036,277 2.30E-03 3,604,469.20 1,185.03
100 gm / 3.68 cm 8,503,628 2.30E-04 360,446.92 118.50
10 gm / 1.71 cm 850,363 2.30E-05 36,044.69 11.85
1 gm / 7.92 mm 85,036 2.30E-06 3,604.47 1.19
0.1 gm / 3.68 mm 8,504 2.30E-07 360.45 0.12
0.01 gm / 1.71 mm 850 2.30E-08 36.04 0.01
0.001 gm / 0.79 mm 85 2.30E-09 3.60 0.00

Weight of pure Metauranospinite in grams (gm) and Calculated Diameter of a Sphere with a Density of 3.84 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

Metauranospinite Classification

Help on  Dana Class: Dana Class: 40.02a.02.02 (40)Hydrated Phosphates, etc
  (40.02a)where A++ (B++)2 (XO4) � x(H2O), containing (UO2)++
  (40.02a.02)Dana Group
40.02a.02.01 Uranospinite Ca(UO2)2(AsO4)2•10(H2O) P nma 2/m 2/m 2/m
40.02a.02.02 Metauranospinite Ca(UO2)2(AsO4)2•8(H2O) P 4/nmm 4/m 2/m 2/m
Help on  Strunz Class: Strunz Class: 08.EB.10 08 - PHOSPHATES, ARSENATES, VANADATES
  08.E - Uranyl Phosphates and Arsenates
  08.EB -UO2:RO4 = 1:1
08.EB.10 Bassetite Fe(UO2)2(PO4)2•8(H2O) P 21/m 2/m
08.EB.10 Lehnerite Mn[UO2/PO4]2•8(H2O) P 21/n 2/m
08.EB.10 Metazeunerite Cu(UO2)2(AsO4)2•8(H2O) P 4/n 4/m
08.EB.10 Meta-autunite Ca(UO2)2(PO4)2•2-6(H2O) P 4/nmm 4/m 2/m 2/m
08.EB.10 Metauranocircite Ba(UO2)2(PO4)2•6-8(H2O) P 21 2
08.EB.10 Metauranospinite Ca(UO2)2(AsO4)2•8(H2O) P 4/nmm 4/m 2/m 2/m
08.EB.10 Metaheinrichite Ba(UO2)2(AsO4)2•8(H2O) P 21 2
08.EB.10 Metakahlerite Fe(UO2)2(AsO4)2•8(H2O) P 4/mmm 4/m 2/m 2/m
08.EB.10 Metakirchheimerite Co(UO2)2(AsO4)2•8(H2O) P 4/mmm 4/m 2/m 2/m
08.EB.10 Metalodevite Zn(UO2)2(AsO4)2•10(H2O) P 41/m 4/m
08.EB.10 Metanovacekite Mg(UO2)2(AsO4)2•4-8(H2O) P 4/n 4/m
08.EB.10 Metatorbernite Cu(UO2)2(PO4)2•8(H2O) P 4/n 4/m
08.EB.10 Przhevalskite Pb(UO2)2(PO4)2•4(H2O) Unk Tetra

Other Metauranospinite Information

Help on References: References: NAME( AntBidBlaNic4) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)
Help on See Also: See Also: Links to other databases for Metauranospinite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - GeoScienceWorld
4 - Google Images
5 - Google Scholar
6 - Handbook of Mineralogy (MinSocAm)
7 - Handbook of Mineralogy (UofA)
8 - MinDAT
9 - Mineralienatlas (Deutsch)
10 - Online Mineral Museum
11 - QUT Mineral Atlas
12 - Ruff.Info

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Dana No: 40.02a.02.02 Strunz No: 08.EB.10





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