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Metavandendriesscheite Mineral Data

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General Metavandendriesscheite Information

Help on Chemical  Formula: Chemical Formula: PbU7O22•n(H2O)(n<12)
Help on Composition: Composition: Molecular Weight = 2,405.54 gm
   Uranium   69.27 %  U    83.23 % UO3
   Hydrogen   0.84 %  H     7.49 % H2O
   Lead       8.61 %  Pb    9.28 % PbO
   Oxygen    21.28 %  O
            ______        ______ 
            100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: PbU7O22•10(H2O)
Help on Environment: Environment: "Gummite zone" of the uranium deposit.
Help on IMA Status: IMA Status: Approved IMA 1960
Help on Locality: Locality: Shinkolobwe, Shaba, Zaire. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Adrien Vandendriessche (1914-1940), Belgain mineralogist and geologist. Meta is used for dehydrated vandendriesscheite.
Help on Name Pronunciation: Name Pronunciation: Metavandendriesscheite + Pronunciation Say METAVANDENDRIESSCHEITE

Metavandendriesscheite Image

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  Metavandendriesscheite   Masuyite

Comments: Botryoidal crusts of orange metavandendriesscheite with red- to yellow-brown prismatic masyuite.
Location: Giftkiesstollen, Jachymov, Bohemia, Czech Republic. Scale: Not Given.
© Diederik Visser

Metavandendriesscheite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =0.3405:1:1.0488
Help on Cell Dimensions: Cell Dimensions: a = 14.07, b = 41.31, c = 43.33, Z = 35; V = 25,184.77 Den(Calc)= 5.55
Help on Crystal System: Crystal System: Orthorhombic Space Group: Pmma,Pm2a
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.61(1), 7.25(1), 3.17(0.8),2.52(0.3), 3.53(0.3), 2.03(0.2), 4.53(0.1),

Physical Properties of Metavandendriesscheite

Help on Cleavage: Cleavage: {001} Perfect
Help on Color: Color: Orange, Amber.
Help on Density: Density: 5.45
Help on Diaphaneity: Diaphaneity: Transparent to Translucent
Help on Habit: Habit: Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline).
Help on Hardness: Hardness: 3 - Calcite
Help on Luster: Luster: Adamantine

Optical Properties of Metavandendriesscheite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.12 (Poor) - where the CI = (1-KPDmeas/KC)
CI calc= -0.099 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1495,KPDmeas= 0.1523,KC= 0.136
Ncalc = 1.74 - 1.75
Help on Optical Data: Optical Data: Biaxial (-), a=1.78, b=1.85, g=1.86, bire=0.0800, 2V(Calc)=40, 2V(Meas)=60.
Help on Pleochroism (x): Pleochroism (x): colorless.
Help on Pleochroism (y): Pleochroism (y): golden yellow.
Help on Pleochroism (z): Pleochroism (z): golden yellow.

Calculated Properties of Metavandendriesscheite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=4.62 gm/cc
note: Specific Gravity of Metavandendriesscheite =5.55 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.02
Boson Index = 0.98
Help on Photoelectric: Photoelectric: PEMetavandendriesscheite =2,045.06 barns/electron
U=PEMetavandendriesscheite x relectron=9,455.47 barns/cc.
Help on Radioactivity: Radioactivity:

GRapi = 4,918,507.44 (Gamma Ray American Petroleum Institute Units)
Concentration of Metavandendriesscheite per GRapi unit = 203.31 (PPB)

Metavandendriesscheite 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) 6.18 ± 1.55 grams of pure Metavandendriesscheite .
Estimated Maximum U.S. Postal Shipping Size (10 mRem/hr limit, Unshielded 100 cm box) 618.41 ±154.60 grams of pure Metavandendriesscheite .

Estimated Radioactivity from Metavandendriesscheite - very strong
Curies (Ci)
If Held in Hand
For One Hour
1000 gm / 7.01 cm 123,984,626 3.35E-03 4,918,507.44 1,617.04
100 gm / 3.25 cm 12,398,463 3.35E-04 491,850.74 161.70
10 gm / 1.51 cm 1,239,846 3.35E-05 49,185.07 16.17
1 gm / 7.01 mm 123,985 3.35E-06 4,918.51 1.62
0.1 gm / 3.25 mm 12,398 3.35E-07 491.85 0.16
0.01 gm / 1.51 mm 1,240 3.35E-08 49.19 0.02
0.001 gm / 0.70 mm 124 3.35E-09 4.92 0.00

Weight of pure Metavandendriesscheite in grams (gm) and Calculated Diameter of a Sphere with a Density of 5.55 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

Metavandendriesscheite Classification

Help on  Dana Class: Dana Class: (05)Oxides Containing Uranium and Thorium
  (05.08)with a cation charge of 6+ containing Pb and sigificant water of hydration
  (05.08.01)Dana Group Vandendriesscheite Pb(UO2)10O6(OH)11•11(H2O) P bca 2/m 2/m 2/m Metavandendriesscheite PbU7O22•n(H2O)(n<12) Pmma,Pm2a Ortho
Help on  Strunz Class: Strunz Class: 04.GB.40 04 - OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodate
  04.G - Uranyl Hydroxides
  04.GB -With additional cations (K, Ca, Ba, Pb, etc.); with mainly UO2(O,OH)5 pentagonal polyhedra
04.GB.40 Metavandendriesscheite PbU7O22•n(H2O)(n<12) Pmma,Pm2a Ortho
04.GB.40 Vandendriesscheite Pb(UO2)10O6(OH)11•11(H2O) P bca 2/m 2/m 2/m

Other Metavandendriesscheite 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 Metavandendriesscheite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - Ecole des Mines de Paris
4 - GeoScienceWorld
5 - Google Images
6 - Google Scholar
7 - Handbook of Mineralogy (MinSocAm)
8 - Handbook of Mineralogy (UofA)
9 - MinDAT
10 - Mineralienatlas (Deutsch)
11 - Online Mineral Museum
12 - QUT Mineral Atlas
13 - Ruff.Info

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Dana No: Strunz No: 04.GB.40





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