Metazeunerite Mineral Data

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General Metazeunerite Information

Chemical Formula:

Cu(UO2)2(AsO4)2•8(H2O)

Composition:

Molecular Weight = 1,025.56 gm

Uranium 46.42 % U 52.66 % UO₂

Copper 6.20 % Cu 7.76 % CuO

Arsenic 14.61 % As 22.41 % As₂O₅

Hydrogen 1.57 % H 14.05 % H₂O

Oxygen 31.20 % O

______ ______

100.00 % 96.88 % = TOTAL OXIDE

Empirical Formula:

Cu(UO₂)₂(AsO₄)₂•8(H₂O)

IMA Status:

Valid Species (Pre-IMA) 1937

Locality:

Weisser Hirsch mine, Schneeberg, Sachsen (Saxony), Germany Link to MinDat.org Location Data.

Name Origin:

Named as the lower hydrate of zeunerite

Name Pronunciation:

Metazeunerite + Pronunciation

Synonym:

ICSD 38122

PDF 17-146

Metazeunerite Image

Images:

Metazeunerite

Comments: Lime green crystals of metazeunerite on matrix.
Location: Schneeberg, Saxony, Germany. Scale: Not Given.
© Lou Perloff / Photo Atlas of Minerals

Images:

Metazeunerite Trogerite

Comments: Yellow crystals of trögerite with green metazeunerite.
Location: Walpurgis Flats, Weißer Hirsch Mine, Neustädtel, Schneeberg District, Erzgebirge, Saxony, Germany. Scale: Picture size 5 mm.
© Thomas Witzke / Abraxas-Verlag

Metazeunerite Crystallography

Axial Ratios:

a:c = 1:2.45352

Cell Dimensions:

a = 7.1, c = 17.42, Z = 2; V = 878.14 Den(Calc)= 3.88

Crystal System:

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

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

By Intensity(I/I_o): 3.73(1), 8.86(1), 5.57(0.8),

Crystal Structure:

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Locock A J , Burns P C , The Canadian Mineralogist , 41 (2003) p.489-502, Crystal structures and synthesis of the copper-dominant members of the autunite, and meta-autunite groups: Tobernite, zeunerite, metatorbernite and metazeunerite

Physical Properties of Metazeunerite

Cleavage:

{001} Perfect, {100} Distinct

Color:

Green, Grass green, Emerald green.

Density:

3.64

Diaphaneity:

Transparent to Translucent

Hardness:

2-2.5 - Gypsum-Finger Nail

Luminescence:

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

Luster:

Vitreous - Pearly

Streak:

greenish white

Optical Properties of Metazeunerite

Dichroism (e):

colorless.

Dichroism (w):

colorless.

Gladstone-Dale:

CI meas= -0.169 (Poor) - where the CI = (1-KPDmeas/KC)
CI calc= -0.097 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1644,KPDmeas= 0.1753,KC= 0.1499
Ncalc = 1.55 - 1.58

Optical Data:

Uniaxial (-), e=1.626, w=1.65, bire=0.0240.

Calculated Properties of Metazeunerite

Electron Density:

Bulk Density (Electron Density)=3.44 gm/cc
note: Specific Gravity of Metazeunerite =3.88 gm/cc.

Fermion Index:

Fermion Index = 0.0034943078
Boson Index = 0.9965056922

Photoelectric:

PE_{Metazeunerite}=1,200.52 barns/electron
U=PE_{Metazeunerite} x r_electron=4,133.15 barns/cc.

Radioactivity:

GRapi = 3,510,839.18 (Gamma Ray American Petroleum Institute Units)
Concentration of Metazeunerite per GRapi unit = 284.83 (PPB)

Metazeunerite 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) 8.66 ± 2.17 grams of pure Metazeunerite .
Estimated Maximum U.S. Postal Shipping Size (10 mRem/hr limit, Unshielded 100 cm box) 866.36 ±216.59 grams of pure Metazeunerite .

**Estimated Radioactivity from Metazeunerite** - 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 / 7.90 cm	83,090,386	2.25E-03	3,510,839.18	1,154.25
100 gm / 3.66 cm	8,309,039	2.25E-04	351,083.92	115.42
10 gm / 1.70 cm	830,904	2.25E-05	35,108.39	11.54
1 gm / 7.90 mm	83,090	2.25E-06	3,510.84	1.15
0.1 gm / 3.66 mm	8,309	2.25E-07	351.08	0.12
0.01 gm / 1.70 mm	831	2.25E-08	35.11	0.01
0.001 gm / 0.79 mm	83	2.25E-09	3.51	0.00

Weight of pure Metazeunerite in grams (gm) and Calculated Diameter of a Sphere with a Density of 3.88 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

Metazeunerite Classification

Dana Class:

40.02a.14.02 (40)Hydrated Phosphates, etc

(40.02a)where A++ (B++)2 (XO4) · x(H2O), containing (UO2)++

(40.02a.14)Dana Group

40.02a.14.01 Zeunerite Cu(UO2)2(AsO4)2•10-16(H2O) P 4/nnc 4/m 2/m 2/m

40.02a.14.02 Metazeunerite Cu(UO2)2(AsO4)2•8(H2O) P 4/n 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 Metazeunerite 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 Metazeunerite :
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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Print or Cut-and-Paste your Metazeunerite Specimen Label here :

Metazeunerite

Cu(UO2)2(AsO4)2•8(H2O)
Dana No: 40.02a.14.02 Strunz No: 08.EB.10
Locality:

Notes: