Metatorbernite Mineral Data

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General Metatorbernite Information

Chemical Formula:

Cu(UO2)2(PO4)2•8(H2O)

Composition:

Molecular Weight = 937.67 gm

Uranium 50.77 % U 57.60 % UO₂

Copper 6.78 % Cu 8.48 % CuO

Phosphorus 6.61 % P 15.14 % P₂O₅

Hydrogen 1.72 % H 15.37 % H₂O

Oxygen 34.13 % O

______ ______

100.00 % 96.59 % = TOTAL OXIDE

Empirical Formula:

Cu(UO₂)₂(PO₄)₂•8(H₂O)

IMA Status:

Valid Species (Pre-IMA) 1916

Locality:

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

Name Origin:

Named as the lower hydrate of tobernite.

Name Pronunciation:

Metatorbernite + Pronunciation

Metatorbernite Image

Images:

Metatorbernite

Comments: Green, square, tabular crystals of metatorbernite on matrix.
Location: Wheal Basset, Illogan, Cornwall, England, UK. Scale: Not Given.
© Lou Perloff / Photo Atlas of Minerals

Images:

Metatorbernite Schoepite

Comments: Green, tabular crystals of metatorbernite and acicular, yellow schoepite on matrix.
Location: Musonoi mine, Kolwezi, Shaba, (Katanga), Congo (Zaïre). Scale: Picture size 2.5 mm.
© Paul M. Schumacher

Images:

Metatorbernite Metatyuyamunite

Comments: Yellow, platy metatyuyamunite and transparent, tabular green metatorbernite crystals with a minor amount of white, snowy-looking saleeite.
Location: Mashamba West Mine, Kolwezi, Shaba (Katanga), Congo (Zaïre). Scale: Picture size 0.5 cm.
© Paul M. Schumacher

Metatorbernite Crystallography

Axial Ratios:

a:c = 1:2.48328

Cell Dimensions:

a = 6.969, c = 17.306, Z = 2; V = 840.50 Den(Calc)= 3.70

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): 3.68(1), 8.71(1), 3.48(0.8),

Crystal Structure:

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Ross M , Evans H T , Appleman D E , American Mineralogist , 49 (1964) p.1603-1621, Studies of the torbernite minerals (II): The crystal structure of, meta-torbernite

View Additional jPOWD Structure files for Metatorbernite
[1]

Physical Properties of Metatorbernite

Cleavage:

{001} Perfect

Color:

Light green, Dark green.

Density:

3.7 - 3.8, Average = 3.75

Diaphaneity:

Transparent to Translucent

Fracture:

Brittle - Generally displayed by glasses and most non-metallic minerals.

Hardness:

2.5 - Finger Nail

Luster:

Vitreous - Adamantine

Streak:

light green

Optical Properties of Metatorbernite

Gladstone-Dale:

CI meas= -0.097 (Poor) - where the CI = (1-KPDmeas/KC)
CI calc= -0.111 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1689,KPDmeas= 0.1667,KC= 0.152
Ncalc = 1.56 - 1.58

Optical Data:

Uniaxial (+), w=1.624, e=1.626, bire=0.0020.

Calculated Properties of Metatorbernite

Electron Density:

Bulk Density (Electron Density)=3.35 gm/cc
note: Specific Gravity of Metatorbernite =3.75 gm/cc.

Fermion Index:

Fermion Index = 0.0038218599
Boson Index = 0.9961781401

Photoelectric:

PE_{Metatorbernite}=1,292.44 barns/electron
U=PE_{Metatorbernite} x r_electron=4,331.50 barns/cc.

Radioactivity:

GRapi = 3,867,593.03 (Gamma Ray American Petroleum Institute Units)
Concentration of Metatorbernite per GRapi unit = 258.56 (PPB)

Metatorbernite 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) 7.86 ± 1.97 grams of pure Metatorbernite .
Estimated Maximum U.S. Postal Shipping Size (10 mRem/hr limit, Unshielded 100 cm box) 786.45 ±196.61 grams of pure Metatorbernite .

**Estimated Radioactivity from Metatorbernite** - 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 / 7.99 cm	90,879,176	2.46E-03	3,867,593.03	1,271.54
100 gm / 3.71 cm	9,087,918	2.46E-04	386,759.30	127.15
10 gm / 1.72 cm	908,792	2.46E-05	38,675.93	12.72
1 gm / 7.99 mm	90,879	2.46E-06	3,867.59	1.27
0.1 gm / 3.71 mm	9,088	2.46E-07	386.76	0.13
0.01 gm / 1.72 mm	909	2.46E-08	38.68	0.01
0.001 gm / 0.80 mm	91	2.46E-09	3.87	0.00

Weight of pure Metatorbernite in grams (gm) and Calculated Diameter of a Sphere with a Density of 3.75 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

Metatorbernite Classification

Dana Class:

40.02a.13.02 (40)Hydrated Phosphates, etc

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

(40.02a.13)Dana Group

40.02a.13.01 Torbernite Cu(UO2)2(PO4)2•8-12(H2O) I 4/mmm 4/m 2/m 2/m

40.02a.13.02 Metatorbernite Cu(UO2)2(PO4)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 Metatorbernite 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 Metatorbernite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - GeoScienceWorld
6 - Google Images
7 - Google Scholar
8 - Handbook of Mineralogy (MinSocAm)
9 - Handbook of Mineralogy (UofA)
10 - MinDAT
11 - Mineralienatlas (Deutsch)
12 - Online Mineral Museum
13 - QUT Mineral Atlas
14 - Ruff.Info
15 - WWW-MINCRYST

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Print or Cut-and-Paste your Metatorbernite Specimen Label here :

Metatorbernite

Cu(UO2)2(PO4)2•8(H2O)
Dana No: 40.02a.13.02 Strunz No: 08.EB.10
Locality:

Notes: