Metavandendriesscheite Mineral Data

General Metavandendriesscheite Information

Chemical Formula:

PbU7O22•n(H2O)(n<12)

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

Empirical Formula:

PbU₇O₂₂•10(H₂O)

Environment:

"Gummite zone" of the uranium deposit.

IMA Status:

Approved IMA 1960

Locality:

Shinkolobwe, Shaba, Zaire. Link to MinDat.org Location Data.

Name Origin:

Named for Adrien Vandendriessche (1914-1940), Belgain mineralogist and geologist. Meta is used for dehydrated vandendriesscheite.

Name Pronunciation:

Metavandendriesscheite + Pronunciation

Metavandendriesscheite Image

Images:

Metavandendriesscheite

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

Axial Ratios:

a:b:c =0.3405:1:1.0488

Cell Dimensions:

a = 14.07, b = 41.31, c = 43.33, Z = 35; V = 25,184.77 Den(Calc)= 5.55

Crystal System:

OrthorhombicSpace Group: Pmma,Pm2a

$Help on X Ray Diffraction:$ X Ray Diffraction:

By Intensity(I/I_o): 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

Cleavage:

{001} Perfect

Color:

Orange, Amber.

Density:

5.45

Diaphaneity:

Transparent to Translucent

Habit:

Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline).

Hardness:

3 - Calcite

Luster:

Adamantine

Optical Properties of Metavandendriesscheite

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

Optical Data:

Biaxial (-), a=1.78, b=1.85, g=1.86, bire=0.0800, 2V(Calc)=40, 2V(Meas)=60.

Pleochroism (x):

colorless.

Pleochroism (y):

golden yellow.

Pleochroism (z):

golden yellow.

Calculated Properties of Metavandendriesscheite

Electron Density:

Bulk Density (Electron Density)=4.62 gm/cc
note: Specific Gravity of Metavandendriesscheite =5.55 gm/cc.

Fermion Index:

Fermion Index = 0.02
Boson Index = 0.98

Photoelectric:

PE_{Metavandendriesscheite}=2,045.06 barns/electron
U=PE_{Metavandendriesscheite} x r_electron=9,455.47 barns/cc.

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
Specimen Size Weight/Volume (Sphere) *	Calculated Activity Becquerels (Bq)	Calculated Activity Curies (Ci)	Estimated Activity GR(api)	Estimated Exposure (mRem**)/hr 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

Dana Class:

05.08.01.02 (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

05.08.01.01 Vandendriesscheite Pb(UO2)10O6(OH)11•11(H2O) P bca 2/m 2/m 2/m

05.08.01.02 Metavandendriesscheite PbU7O22•n(H2O)(n<12) Pmma,Pm2a Ortho

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

References:

NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)

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

Search for Metavandendriesscheite using:

[AOL] [Bing] [Dog Pile] [GeoScienceWorld] [HotBot] [Ixquick] [Lycos] [MAMMA] [Scirus] [Teoma] [WebCrawler] [Wikipedia] [YAHOO]

Visit our Advertisers for Metavandendriesscheite :

A Bijoux Google Search for Metavandendriesscheite
Adam's Minerals Google Search for Metavandendriesscheite
Cape Minerals Google Search for Metavandendriesscheite
Dakota Matrix Minerals Google Search for Metavandendriesscheite
Excalibur Mineral Corp. Google Search for Metavandendriesscheite
Exceptional Minerals Google Search for Metavandendriesscheite
John Betts Fine Minerals Search for Metavandendriesscheite
McDougall Minerals Google Search for Metavandendriesscheite
Mineral News Website Link
Rock and Mineral Shows Google Search for Metavandendriesscheite
Weinrich Minerals, Inc. Google Search for Metavandendriesscheite

Ask about Metavandendriesscheite here :
Ask-A-Mineralogist from the Mineralogical Society of America
Mindat.org's Discussion Groups
Original Rockhounds Discussion Group
Rockhounds Discussion Group on Yahoo Groups
Mineral Discussion Forum from Fabre Minerals - also available in Español

Print or Cut-and-Paste your Metavandendriesscheite Specimen Label here :

Metavandendriesscheite

PbU7O22•n(H2O)(n<12)
Dana No: 05.08.01.02 Strunz No: 04.GB.40
Locality:

Notes: