Arsenovanmeersscheite Mineral Data

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General Arsenovanmeersscheite Information

Chemical Formula:

U(OH)4[(UO2)3(AsO4)2(OH)2]•4H2O

Composition:

Molecular Weight = 1,500.06 gm

Uranium 63.47 % U 72.00 % UO₂

Arsenic 9.99 % As 15.32 % As₂O₅

Hydrogen 0.94 % H 8.41 % H₂O

Oxygen 25.60 % O

______ ______

100.00 % 95.73 % = TOTAL OXIDE

Empirical Formula:

U(OH)₄(UO₂)₃(AsO₄)₂(OH)₂•4(H₂O)

Environment:

Vanmeersscheite-althupite group

IMA Status:

Proposed IMA 2006

Locality:

Uranium deposit Menzenschwand, Southern Black Forest, Baden-Württemberg, Germany Link to MinDat.org Location Data.

Name Origin:

Commission on New Minerals, Nomenclature and Classification (CNMNC)

Synonym:

IMA2006-018

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Arsenovanmeersscheite Crystallography

Axial Ratios:

a:b:c =1.0235:1:0.4139

Cell Dimensions:

a = 17.36, b = 16.96, c = 7.02, Z = 4; V = 2,066.87 Den(Calc)= 4.82

Crystal System:

Orthorhombic - DisphenoidalH-M Symbol (2 2 2) Space Group: P 2₁mn

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

By Intensity(I/I_o): 8.56(1), 4.25(0.8), 6.07(0.8),12.21(0.8), 3.33(0.7), 5.42(0.7), 3.11(0.6), 3.86(0.5),

Optical Properties of Arsenovanmeersscheite

Optical Data:

NCalc= 1.6 - from Gladstone-Dale relationship (KC = 0.1254) where Ncalc=Dcalc*KC+1

Calculated Properties of Arsenovanmeersscheite

Electron Density:

Bulk Density (Electron Density)=4.11 gm/cc
note: Specific Gravity of Arsenovanmeersscheite =4.82 gm/cc.

Fermion Index:

Fermion Index = 0.0046942675
Boson Index = 0.9953057325

Photoelectric:

PE_{Arsenovanmeersscheite}=1,695.18 barns/electron
U=PE_{Arsenovanmeersscheite} x r_electron=6,972.15 barns/cc.

Radioactivity:

GRapi = 4,616,562.26 (Gamma Ray American Petroleum Institute Units)
Concentration of Arsenovanmeersscheite per GRapi unit = 216.61 (PPB)

Arsenovanmeersscheite 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) 6.59 ± 1.65 grams of pure Arsenovanmeersscheite .
Estimated Maximum U.S. Postal Shipping Size (10 mRem/hr limit, Unshielded 100 cm box) 658.86 ±164.71 grams of pure Arsenovanmeersscheite .

**Estimated Radioactivity from Arsenovanmeersscheite** - 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 / 7.34 cm	113,614,920	3.07E-03	4,616,562.26	1,517.77
100 gm / 3.41 cm	11,361,492	3.07E-04	461,656.23	151.78
10 gm / 1.58 cm	1,136,149	3.07E-05	46,165.62	15.18
1 gm / 7.34 mm	113,615	3.07E-06	4,616.56	1.52
0.1 gm / 3.41 mm	11,361	3.07E-07	461.66	0.15
0.01 gm / 1.58 mm	1,136	3.07E-08	46.17	0.02
0.001 gm / 0.73 mm	114	3.07E-09	4.62	0.00

Weight of pure Arsenovanmeersscheite in grams (gm) and Calculated Diameter of a Sphere with a Density of 4.82 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

Arsenovanmeersscheite Classification

Dana Class:

42.07.14.03 (42)Hydrated Phosphates, etc., Containing Hydroxyl or Halogen

(42.07)where (AB)5 (XO4)3 Zq · x(H2O)

(42.07.14)Vanmeersscheite Group

42.07.14.01 Vanmeersscheite U(UO2)3(PO4)2(OH)6•4(H2O) P mn2₁ mm2

42.07.14.02 Metavanmeersscheite U(UO2)3(PO4)2(OH)6•2(H2O) F dd2 mm2

42.07.14.03 Arsenovanmeersscheite U(OH)4[(UO2)3(AsO4)2(OH)2]•4H2O P 2₁mn 2 2 2

Strunz Class:

08.EC.20 08 - PHOSPHATES, ARSENATES, VANADATES

08.E - Uranyl Phosphates and Arsenates

08.EC -UO2:RO4 = 3:2

08.EC.20 Metavanmeersscheite U(UO2)3(PO4)2(OH)6•2(H2O) F dd2 mm2

08.EC.20 Vanmeersscheite U(UO2)3(PO4)2(OH)6•4(H2O) P mn2₁ mm2

08.EC.20 Arsenovanmeersscheite U(OH)4[(UO2)3(AsO4)2(OH)2]•4H2O P 2₁mn 2 2 2

Other Arsenovanmeersscheite Information

See Also:

Links to other databases for Arsenovanmeersscheite :
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
10 - Ruff.Info

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Arsenovanmeersscheite

U(OH)4[(UO2)3(AsO4)2(OH)2]•4H2O
Dana No: 42.07.14.03 Strunz No: 08.EC.20
Locality:

Notes: