Metalodevite Mineral Data

Metalodevite Mineral Data +

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General Metalodevite Information

Chemical Formula:

Zn(UO2)2(AsO4)2·10(H2O)

Composition:

Molecular Weight = 1,063.44 gm

Uranium 44.77 % U 50.78 % UO₂

Zinc 6.15 % Zn 7.65 % ZnO

Arsenic 14.09 % As 21.61 % As₂O₅

Hydrogen 1.90 % H 16.94 % H₂O

Oxygen 33.10 % O

______ ______

100.00 % 96.99 % = TOTAL OXIDE

Empirical Formula:

Zn(UO₂)₂(AsO₄)₂·10(H₂O)

IMA Status:

Approved IMA 1972

Locality:

Link to MinDat.org Location Data.

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Metalodevite Crystallography

Axial Ratios:

a:c = 1:2.40223

Cell Dimensions:

a = 7.16, c = 17.2, Z = 2; V = 881.77 Den(Calc)= 4.01

Crystal System:

Tetragonal - DipyramidalH-M Symbol (4/m) Space Group: P 4₁/m

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

By Intensity(I/I_o): 3.59(1), 8.66(0.7), 2.98(0.6),

Physical Properties of Metalodevite

Cleavage:

[???] Perfect

Color:

Light yellow, Olive green.

Density:

Diaphaniety:

Transparent to Translucent

Hardness:

2-2.5 - Gypsum-Finger Nail

Luminescence:

Fluorescent.

Luster:

Vitreous (Glassy)

Streak:

white

Optical Properties of Metalodevite

Gladstone-Dale:

CI meas= -0.012 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= -0.009 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1569,KPDmeas= 0.1573,KC= 0.1555

Optical Data:

Biaxial (-), a=1.615, b=1.635, g=1.638, bire=0.0230

Pleochroism (x):

colorless.

Pleochroism (y):

colorless.

Pleochroism (z):

colorless.

Calculated Properties of Metalodevite

Electron Density:

r_electron=3.59 gm/cc
note: r_Metalodevite=4.01 gm/cc.

Fermion Index

Fermion Index = 0.0059
Boson Index = 0.9941

Photoelectric:

PE_Metalodevite=1,148.04 barns/electron
U=PE_Metalodevite x r_electron=4,121.25 barns/cc.

Radioactivity:

GRapi = 3,415,913.87 (Gamma Ray American Petroleum Institute Units)

Metalodevite 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) 8.90 ± 2.23 grams of pure Metalodevite .
Estimated Maximum U.S. Postal Shipping Size (10 mRem/hr limit, Unshielded 100 cm box) 890.44 ±222.61 grams of pure Metalodevite .

**Estimated Radioactivity from Metalodevite** - 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 / 7.81 cm	80,131,086	2.17E-03	3,415,913.87	1,123.04
100 gm / 3.62 cm	8,013,109	2.17E-04	341,591.39	112.30
10 gm / 1.68 cm	801,311	2.17E-05	34,159.14	11.23
1 gm / 7.81 mm	80,131	2.17E-06	3,415.91	1.12
0.1 gm / 3.62 mm	8,013	2.17E-07	341.59	0.11
0.01 gm / 1.68 mm	801	2.17E-08	34.16	0.01
0.001 gm / 0.78 mm	80	2.17E-09	3.42	0.00

Weight of pure Metalodevite in grams (gm) and Calculated Diameter of a Sphere with a Density of 4.01 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

Metalodevite Classification

Dana Class:

40.2a.18.1 (40)Hydrated Phosphates, etc

(40.2a)where A++ (B++)2 (XO4) · x(H2O), containing (UO2)++

(40.2a.18)Dana Group

40.2a.18.1 Metalodevite Zn(UO2)2(AsO4)2·10(H2O) P 4₁/m 4/m

Strunz Class:

VII/E.02-80 VII - Phosphates, Arsenates and Vanadates

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

VII/E.02 - Meta-autunite group

VII/E.02-10 Metanovacekite Mg(UO2)2(AsO4)2·4-8(H2O) P 4/n 4/m

VII/E.02-20 Bassetite Fe(UO2)2(PO4)2·8(H2O) P 2₁/m 2/m

VII/E.02-30 Metakahlerite Fe(UO2)2(AsO4)2·8(H2O) P 4/mmm 4/m 2/m 2/m

VII/E.02-40 Lehnerite Mn[UO2/PO4]2·8(H2O) P 2₁/n 2/m

VII/E.02-50 Metakirchheimerite Co(UO2)2(AsO4)2·8(H2O) P 4/mmm 4/m 2/m 2/m

VII/E.02-60 Metatorbernite Cu(UO2)2(PO4)2·8(H2O) P 4/n 4/m

VII/E.02-70 Metazeunerite Cu(UO2)2(AsO4)2·8(H2O) P 4/n 4/m

VII/E.02-80 Metalodevite Zn(UO2)2(AsO4)2·10(H2O) P 4₁/m 4/m

VII/E.02-90 Meta-autunite Ca(UO2)2(PO4)2·2-6(H2O) P 4/nmm 4/m 2/m 2/m

VII/E.02-95 Sodium meta-autunite! Na2(UO2)2(PO4)2·6-8(H2O) P 4/nmm 4/m 2/m 2/m

VII/E.02-100 Meta-uranospinite Ca(UO2)2(AsO4)2·8(H2O) P 4/nmm 4/m 2/m 2/m

VII/E.02-110 Meta-uranocircite Ba(UO2)2(PO4)2·6-8(H2O) P 2₁ 2

VII/E.02-120 Metaheinrichite Ba(UO2)2(AsO4)2·8(H2O) P 4₁/? 4/m

VII/E.02-130 Sodium-uranospinite (Na2,Ca)(UO2)2(AsO4)2·5(H2O) P 4/nmm 4/m 2/m 2/m

VII/E.02-140 Meta-ankoleite K2(UO2)2(PO4)2·6(H2O) P 4/nmm 4/m 2/m 2/m

VII/E.02-150 Abernathyite K(UO2)(AsO4)·4(H2O) P 4/ncc 4/m 2/m 2/m

VII/E.02-160 Uramphite (NH4)(UO2)(PO4)·3(H2O) P 4/nmm 4/m 2/m 2/m

VII/E.02-170 Chernikovite (H3O)2(UO2)2(PO4)2·6(H2O) P 4/nmm 4/m 2/m 2/m

VII/E.02-180 Pseudo-autunite* (H3O)4Ca2(UO2)2(PO4)4·5(H2O)(?) Unk Ortho

VII/E.02-190 Ulrichite CaCu(UO2)(PO4)2·4(H2O) C 2/m 2/m

Other Metalodevite 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 Metalodevite :
1 -Am. Min. Crystal Structure Database 2 -Athena 3 - EUROmin Project 4 - Franklin Minerals(Dunn) 5 -Google Images 6 -Google Scholar 7 -Handbook of Mineralogy (UofA) 8 -MinDAT 9 -MinMax(Deutsch) 10 -MinMax(English) 11 -Mineralienatlas (Deutsch) 12 -QUT Mineral Atlas 13 -École des Mines de Paris

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Metalodevite

Zn(UO2)2(AsO4)2·10(H2O)
Dana No: 40.2a.18.1 Strunz No: VII/E.02-80
Locality:

Notes: