Metalodevite Mineral Data

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:

Lodeve, Herault, and St. Martin du bose, France. Link to MinDat.org Location Data.

Name Origin:

Named for the locality.

Name Pronunciation:

Metalodevite + Pronunciation

Synonym:

Meta-lodevite - Renamed as Metalodevite by Mineralogical Record, v330 (2008), p131

Metalodevite Image

Images:

Metalodevite

Comments: Micro crystals of pale yellow metalodevite to 1 mm.
Location: Rivieral, Lodeve, Herault, Languedoc-Roussillon, France. Scale: Specimen Size 5 x 2 x 3 cm.
© Tom Loomis / Dakota Matrix

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 - Dipyramidal H-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:

Diaphaneity:

Transparent to Translucent

Hardness:

2-2.5 - Gypsum-Finger Nail

Luminescence:

Fluorescent, Short UV=feeble yellow green, Long UV=feeble yellow green.

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
Ncalc = 1.62

Optical Data:

Biaxial (-), a=1.615, b=1.635, g=1.638, bire=0.0230, 2V(Calc)=40, 2V(Meas)=27-37. Dispersion anomalously biaxial.

Pleochroism (x):

colorless.

Pleochroism (y):

colorless.

Pleochroism (z):

colorless.

Calculated Properties of Metalodevite

Electron Density:

Bulk Density (Electron Density)=3.59 gm/cc
note: Specific Gravity of Metalodevite =4.01 gm/cc.

Fermion Index:

Fermion Index = 0.0059059314
Boson Index = 0.9940940686

Photoelectric:

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

Radioactivity:

GRapi = 3,415,915.87 (Gamma Ray American Petroleum Institute Units)
Concentration of Metalodevite per GRapi unit = 292.75 (PPB)

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	80,131,102	2.17E-03	3,415,915.87	1,123.04
100 gm / 3.62 cm	8,013,110	2.17E-04	341,591.59	112.30
10 gm / 1.68 cm	801,311	2.17E-05	34,159.16	11.23
1 gm / 7.81 mm	80,131	2.17E-06	3,415.92	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:

40.02a.18.01 (40)Hydrated Phosphates, etc

(40.02a)where A++ (B++)2 (XO4) ï¿½ x(H2O), containing (UO2)++

(40.02a.18)Dana Group

40.02a.18.01 Metalodevite Zn(UO2)2(AsO4)2•10(H2O) P 4₁/m 4/m

Strunz Class:

08.EB.10 08 - PHOSPHATES, ARSENATES, VANADATES

08.E - Uranyl Phosphates and Arsenates

08.EB -UO2:RO4 = 1:1

08.EB.10 Bassetite Fe(UO2)2(PO4)2•8(H2O) P 2₁/m 2/m

08.EB.10 Lehnerite Mn[UO2/PO4]2•8(H2O) P 2₁/n 2/m

08.EB.10 Metazeunerite Cu(UO2)2(AsO4)2•8(H2O) P 4/n 4/m

08.EB.10 Meta-autunite Ca(UO2)2(PO4)2•2-6(H2O) P 4/nmm 4/m 2/m 2/m

08.EB.10 Metauranocircite Ba(UO2)2(PO4)2•6-8(H2O) P 2₁ 2

08.EB.10 Metauranospinite Ca(UO2)2(AsO4)2•8(H2O) P 4/nmm 4/m 2/m 2/m

08.EB.10 Metaheinrichite Ba(UO2)2(AsO4)2•8(H2O) P 2₁ 2

08.EB.10 Metakahlerite Fe(UO2)2(AsO4)2•8(H2O) P 4/mmm 4/m 2/m 2/m

08.EB.10 Metakirchheimerite Co(UO2)2(AsO4)2•8(H2O) P 4/mmm 4/m 2/m 2/m

08.EB.10 Metalodevite Zn(UO2)2(AsO4)2•10(H2O) P 4₁/m 4/m

08.EB.10 Metanovacekite Mg(UO2)2(AsO4)2•4-8(H2O) P 4/n 4/m

08.EB.10 Metatorbernite Cu(UO2)2(PO4)2•8(H2O) P 4/n 4/m

08.EB.10 Przhevalskite Pb(UO2)2(PO4)2•4(H2O) Unk Tetra

Other Metalodevite Information

References:

NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990;Dana8) 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 - Ecole des Mines de Paris
5 - Franklin Minerals(Dunn)
6 - GeoScienceWorld
7 - Google Images
8 - Google Scholar
9 - Handbook of Mineralogy (MinSocAm)
10 - Handbook of Mineralogy (UofA)
11 - MinDAT
12 - Mineralienatlas (Deutsch)
13 - Online Mineral Museum
14 - QUT Mineral Atlas
15 - Ruff.Info

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Metalodevite

Zn(UO2)2(AsO4)2•10(H2O)
Dana No: 40.02a.18.01 Strunz No: 08.EB.10
Locality:

Notes:

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