Mineralogy Database

Metauranopilite Mineral Data

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General Metauranopilite Information

Help on Chemical  Formula: Chemical Formula: (UO2)6(SO4)(OH)10•5(H2O)
Help on Composition: Composition: Molecular Weight = 1,976.38 gm
   Uranium   72.26 %  U    81.98 % UO2
   Hydrogen   1.02 %  H     9.12 % H2O
   Sulfur     1.62 %  S     4.05 % SO3
   Oxygen    25.10 %  O
            ______        ______ 
            100.00 %       95.14 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: (UO2)6(SO4)(OH)10•5(H2O)
Help on Environment: Environment: Alteration product of uranopilite.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1952
Help on Locality: Locality: Jachymov, Bohemia, Czech Republic. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named as the lower hydrate of uranopilite.
Help on Synonym: Synonym: Meta-uranopilite - Renamed as Metauranopilite by Mineralogical Record, v330 (2008), p131

Metauranopilite Image

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Comments: Orange-brown aggregates of metauranopilite with yellow green johannite on matrix. Unless sealed in glass, all uranopilite specimens should be considered to have become metauranopilite within a few months of being exposed to ambient air.
Location: Apex Mine, Lander Co., Nevada, USA. Scale: See Image.
© Paul M. Schumacher

Metauranopilite Crystallography

Help on Crystal System: Crystal System: Orthorhombic Space Group: Unk
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.57(1), 8.65(1), 3.31(0.9),5.53(0.8), 3(0.5), 3.67(0.4), 4.36(0.4), 5.08(0.4),

Physical Properties of Metauranopilite

Help on Color: Color: Gray, Grayish green, Brownish, Yellow.
Help on Habit: Habit: Acicular - Occurs as needle-like crystals.
Help on Habit: Habit: Tabular - Form dimensions are thin in one direction.
Help on Luminescence: Luminescence: Fluorescent, Short UV=yellow green.

Optical Properties of Metauranopilite

Help on Optical Data: Optical Data: Biaxial (-), a=1.72, b=1.76, g=1.76, bire=0.0400

Calculated Properties of Metauranopilite

Help on Fermion Index: Fermion Index: Fermion Index = 0.005446544
Boson Index = 0.994553456
Help on Photoelectric: Photoelectric: PEMetauranopilite =1,938.04 barns/electron
U=PEMetauranopilite x relectron= . barns/cc.
Help on Radioactivity: Radioactivity:

GRapi = 5,210,869.84 (Gamma Ray American Petroleum Institute Units)
Concentration of Metauranopilite per GRapi unit = 191.91 (PPB)

Metauranopilite 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) 5.84 ± 1.46 grams of pure Metauranopilite .
Estimated Maximum U.S. Postal Shipping Size (10 mRem/hr limit, Unshielded 100 cm box) 583.72 ±145.93 grams of pure Metauranopilite .

Estimated Radioactivity from Metauranopilite - very strong
Curies (Ci)
If Held in Hand
For One Hour
1000 gm 129,349,159 3.50E-03 5,210,869.84 1,713.16
100 gm 12,934,916 3.50E-04 521,086.98 171.32
10 gm 1,293,492 3.50E-05 52,108.70 17.13
1 gm 129,349 3.50E-06 5,210.87 1.71
0.1 gm 12,935 3.50E-07 521.09 0.17
0.01 gm 1,293 3.50E-08 52.11 0.02
0.001 gm 129 3.50E-09 5.21 0.00

Weight of pure Metauranopilite in grams (gm).*
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

Metauranopilite Classification

Help on  Dana Class: Dana Class: (31)Hydrated Sulfates Containing Hydroxyl or Halogen
  (31.02)where (A+ B++)6 (XO4) Zq�x(H2O)
  (31.02.07)Dana Group Metauranopilite (UO2)6(SO4)(OH)10•5(H2O) Unk Ortho
Help on  Strunz Class: Strunz Class: 07.EA.05 07 - SULFATES (SELENATES, TELLURATES)
  07.E - Uranyl Sulfates
  07.EA -Without cations
07.EA.05 Metauranopilite (UO2)6(SO4)(OH)10•5(H2O) Unk Ortho
07.EA.05 Uranopilite [(UO2)6(SO4)O2(OH)6(H2O)6]•8(H2O) P1 1

Other Metauranopilite Information

Help on References: References: NAME( Dana8) 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 Metauranopilite :
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: Strunz No: 07.EA.05





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