Metavanmeersscheite Mineral Data

Metavanmeersscheite Mineral Data +

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General Metavanmeersscheite Information

Chemical Formula:

U++++++(UO2)3(PO4)2(OH)6·2(H2O)

Composition:

Molecular Weight = 1,376.13 gm

Uranium 69.19 % U 58.87 % UO₂ / 20.78 % UO₃

Phosphorus 4.50 % P 10.31 % P₂O₅

Hydrogen 0.73 % H 6.55 % H₂O

Oxygen 25.58 % O

______ ______

100.00 % 96.51 % = TOTAL OXIDE

Empirical Formula:

U(UO₂)₃(PO₄)₂(OH)₆·2(H₂O)

IMA Status:

Approved IMA 1982

Locality:

Link to MinDat.org Location Data.

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Metavanmeersscheite Crystallography

Axial Ratios:

a:b:c =1.0088:1:0.4154

Cell Dimensions:

a = 34.18, b = 33.88, c = 14.074, Z = 32; V = 16,297.95 Den(Calc)= 4.49

Crystal System:

Orthorhombic - PyramidalH-M Symbol (mm2) Space Group: F dd2

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

By Intensity(I/I_o): 8.49(1), 6.01(0.9), 3.073(0.7),

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Physical Properties of Metavanmeersscheite

Cleavage:

[010] Good, [100] Distinct

Color:

Canary yellow.

Density:

4.49

Hardness:

2-3 - Gypsum-Calcite

Streak:

light yellow

Optical Properties of Metavanmeersscheite

Optical Data:

Biaxial (-), a=1.67, b=1.68, g=1.69, bire=0.0200, 2V(Calc)=88, 2V(Meas)=83.

Calculated Properties of Metavanmeersscheite

Electron Density:

r_electron=3.81 gm/cc
note: r_{Metavanmeersscheite}=4.49 gm/cc.

Fermion Index

Fermion Index = 0.0051
Boson Index = 0.9949

Photoelectric:

PE_{Metavanmeersscheite}=1,849.67 barns/electron
U=PE_{Metavanmeersscheite} x r_electron=7,048.95 barns/cc.

Radioactivity:

GRapi = 5,005,501.65 (Gamma Ray American Petroleum Institute Units)

Metavanmeersscheite 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) 6.08 ± 1.52 grams of pure Metavanmeersscheite .
Estimated Maximum U.S. Postal Shipping Size (10 mRem/hr limit, Unshielded 100 cm box) 607.66 ±151.92 grams of pure Metavanmeersscheite .

**Estimated Radioactivity from Metavanmeersscheite** - 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 / 7.52 cm	123,846,413	3.35E-03	5,005,501.65	1,645.64
100 gm / 3.49 cm	12,384,641	3.35E-04	500,550.16	164.56
10 gm / 1.62 cm	1,238,464	3.35E-05	50,055.02	16.46
1 gm / 7.52 mm	123,846	3.35E-06	5,005.50	1.65
0.1 gm / 3.49 mm	12,385	3.35E-07	500.55	0.16
0.01 gm / 1.62 mm	1,238	3.35E-08	50.06	0.02
0.001 gm / 0.75 mm	124	3.35E-09	5.01	0.00

Weight of pure Metavanmeersscheite in grams (gm) and Calculated Diameter of a Sphere with a Density of 4.49 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

Metavanmeersscheite Classification

Dana Class:

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

(42.7)where (AB)5 (XO4)3 Zq · x(H2O)

(42.7.14)Dana Group

42.7.14.1 Vanmeersscheite U(UO2)3(PO4)2(OH)6·4(H2O) P mn2₁ mm2

42.7.14.2 Metavanmeersscheite U(UO2)3(PO4)2(OH)6·2(H2O) F dd2 mm2

Strunz Class:

VII/E.07-150 VII - Phosphates, Arsenates and Vanadates

VII/E - Uranylphosphates and uranylvanadates with [UO2]2+ - [PO4 | AsO4]3- and [UO2]2+ - [V2O8]6-

VII/E.07 - Phosphuranylite series

VII/E.07-10 Phuralumite Al2(UO2)3(PO4)2(OH)6·10(H2O) P 2₁/a 2/m

VII/E.07-20 Mundite Al(UO2)3(PO4)2(OH)3·5(H2O) P 2₁cn,Pmcn Ortho

VII/E.07-25 Yingjiangite (K2,Ca)(UO2)7(PO4)4(OH)6·6(H2O) Bmmb 2/m 2/m 2/m

VII/E.07-30 Phosphuranylite KCa(H3O)3(UO2)7(PO4)4O4·8(H2O) C mcm 2/m 2/m 2/m

VII/E.07-40 Phurcalite Ca2(UO2)3O2(PO4)2·7(H2O) P bca 2/m 2/m 2/m

VII/E.07-50 Arsenuranylite Ca(UO2)4(AsO4)2(OH)4·6(H2O) Bmmb 2/m 2/m 2/m

VII/E.07-60 Bergenite Ca2Ba4[(UO3)2O2(PO4)2]3(H2O)16 P 2₁/c 2/m

VII/E.07-70 Francoisite-(Nd) (Nd,Y,Sm,Ce)(UO2)3(PO4)2O(OH)·6(H2O) P 2₁/c 2/m

VII/E.07-80 Dewindtite Pb3[H(UO2)3O2(PO4)2]2·12(H2O) Bmmb 2/m 2/m 2/m

VII/E.07-90 Dumontite Pb2(UO2)3O2(PO4)2·5(H2O) P 2₁/m 2/m

VII/E.07-100 Hugelite Pb2(UO2)3(AsO4)2(OH)4·3(H2O) P 2₁/m 2/m

VII/E.07-110 Kamitugaite PbAl(UO2)5(PO4)2(OH)9·9.5(H2O) P1,P 1 Tri

VII/E.07-120 Kivuite? (Th,Ca,Pb)H2(UO2)4(PO4)2(OH)8·7(H2O) Unk Ortho

VII/E.07-130 Althupite ThAl(UO2)7(PO4)4(OH)5·15(H2O) P1 1

VII/E.07-140 Vanmeersscheite U(UO2)3(PO4)2(OH)6·4(H2O) P mn2₁ mm2

VII/E.07-150 Metavanmeersscheite U(UO2)3(PO4)2(OH)6·2(H2O) F dd2 mm2

Other Metavanmeersscheite Information

References:

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

See Also:

Links to other databases for Metavanmeersscheite :
1 -Am. Min. Crystal Structure Database 2 -Athena 3 -Google Images 4 -Google Scholar 5 -Handbook of Mineralogy (UofA) 6 -MinDAT 7 -MinMax(Deutsch) 8 -MinMax(English) 9 -Mineralienatlas (Deutsch) 10 -QUT Mineral Atlas 11 -École des Mines de Paris

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Metavanmeersscheite

U++++++(UO2)3(PO4)2(OH)6·2(H2O)
Dana No: 42.7.14.2 Strunz No: VII/E.07-150
Locality:

Notes: