Phosphowalpurgite Mineral Data (original) (raw)

General Phosphowalpurgite Information

Help on Chemical Formula: Chemical Formula:

(UO2)Bi4(PO4)O4•2(H2O)

Help on Composition: Composition:

Molecular Weight = 1,391.69 gm

Calcium 0.23 % Ca 0.32 % CaO

Uranium 15.56 % U 17.66 % UO2

Vanadium 0.07 % V 0.13 % V2O5

Iron 0.28 % Fe 0.40 % Fe2O3

Copper 0.23 % Cu 0.29 % CuO

Silicon 0.08 % Si 0.17 % SiO2

Bismuth 58.71 % Bi 65.46 % Bi2O3

Arsenic 2.69 % As 4.13 % As2O5

Phosphorus 3.34 % P 7.65 % P2O5

Hydrogen 0.29 % H 2.59 % H2O

Lead 0.15 % Pb 0.16 % PbO

Oxygen 18.36 % O

______ ______

100.00 % 98.95 % = TOTAL OXIDE

Help on Empirical Formula: Empirical Formula:

(UO2)0.91Ca0.08Fe3+0.07Cu0.05Pb0.01Bi3.91O3.91(PO4)1.5(AsO4)0.5(SiO4)0.04(VO4)0.02�2(H2O)

Help on Environment: Environment:

Occurs as small clusters in fissure and cavities in quartz gangue from the mine dump. Mineral is formed by the supergene alteration of uraninite and bismuth sulfides.

Help on IMA Status: IMA Status:

Approved IMA 2004 (Dana # Added)

Help on Locality: Locality:

Ore depost near Smrkovec,k in western Bohemia, Czech Republic. Link to MinDat.org Location Data.

Help on Name Origin: Name Origin:

Named as the phosphate (PO4---) analogue of walpurgite.

Help on Synonym: Synonym:

IMA2001-062

Phosphowalpurgite Image

Click Here for Larger Phosphowalpurgite Image in a New Browser Window Images:

Click Here for Larger Phosphowalpurgite Image Phosphowalpurgite Comments: Scanning electron photomicrograph of tabular crystals (up to 330 microm) of phosphowalpurgite, (CanMin, 42:966).. Location: Old mine dumps of an abandoned small ore deposit near Smrkovec, located 10 km NNE of Mariánské Lázn?, Slavkovský Les Mountains, western Bohemia, Czech Republic.Scale: Picture Size 515 µ-m. © Canadian Mineralogist

Phosphowalpurgite Crystallography

Help on Axial Ratios: Axial Ratios:

a:b:c =0.6895:1:0.5336

Help on Cell Dimensions: Cell Dimensions:

a = 7.06, b = 10.238, c = 5.464, Z = 1; alpha = 101.22°, beta = 109.93°, gamma = 87.93° V = 363.95 Den(Calc)= 6.35

Help on Crystal System: Crystal System:

Triclinic - PinacoidalH-M Symbol ( 1) Space Group: P1

Help on X Ray Diffraction: X Ray Diffraction:

By Intensity(I/Io): 10.06(1)(010), 3.084(0.95)(121,211), 3.125(0.86)(210),3.251(0.72)(021,121), 3.005(0.52)(131), 3.346(0.43)(030,201

Physical Properties of Phosphowalpurgite

Help on Cleavage: Cleavage:

{010} Perfect

Help on Color: Color:

Brownish gray.

Help on Diaphaneity: Diaphaneity:

Translucent

Help on Fracture: Fracture:

Brittle - Conchoidal - Very brittle fracture producing small, conchoidal fragments.

Help on Habit: Habit:

Encrustations - Forms crust-like aggregates on matrix.

Help on Habit: Habit:

Euhedral Crystals - Occurs as well-formed crystals showing good external form.

Help on Hardness: Hardness:

4-5 - Fluorite-Apatite

Help on Luster: Luster:

Vitreous - Adamantine

Help on Streak: Streak:

light brownish gray

Optical Properties of Phosphowalpurgite

Help on Gladstone-Dale: Gladstone-Dale:

CI calc= 0.008 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1496,KC= 0.1507
Ncalc = 1.96

Help on Optical Data: Optical Data:

Biaxial (?), a=1.9, g=2, bire=0.1000

Calculated Properties of Phosphowalpurgite

Help on Electron Density: Electron Density:

Bulk Density (Electron Density)=5.35 gm/cc
note: Specific Gravity of Phosphowalpurgite =6.35 gm/cc.

Help on Fermion Index: Fermion Index:

Fermion Index = 0.0016409975
Boson Index = 0.9983590025

Help on Photoelectric: Photoelectric:

PEPhosphowalpurgite =1,547.28 barns/electron
U=PEPhosphowalpurgite x relectron=8,270.30 barns/cc.

Help on Radioactivity: Radioactivity:

GRapi = 1,116,707.99 (Gamma Ray American Petroleum Institute Units)
Concentration of Phosphowalpurgite per GRapi unit = 895.49 (PPB)

Phosphowalpurgite 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) 27.24 ± 6.81 grams of pure Phosphowalpurgite .
Estimated Maximum U.S. Postal Shipping Size(10 mRem/hr limit, Unshielded 100 cm box) 2723.8 ±680.94 grams of pure Phosphowalpurgite .

Estimated Radioactivity from Phosphowalpurgite - very strong

SpecimenSizeWeight/Volume(Sphere) * CalculatedActivityBecquerels(Bq) CalculatedActivityCuries (Ci) EstimatedActivityGR(api) EstimatedExposure(mRem**)/hrIf Held in HandFor One Hour
1000 gm / 6.70 cm 27,860,024 7.53E-04 1,116,707.99 367.14
100 gm / 3.11 cm 2,786,002 7.53E-05 111,670.80 36.71
10 gm / 1.44 cm 278,600 7.53E-06 11,167.08 3.67
1 gm / 6.70 mm 27,860 7.53E-07 1,116.71 0.37
0.1 gm / 3.11 mm 2,786 7.53E-08 111.67 0.04
0.01 gm / 1.44 mm 279 7.53E-09 11.17 0.00
0.001 gm / 0.67 mm 28 7.53E-10 1.12 0.00

Weight of pure Phosphowalpurgite in grams (gm) and Calculated Diameter of a Sphere with a Density of 6.35 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

Phosphowalpurgite Classification

Help on Dana Class: Dana Class:

40.05.09.03 (40)Hydrated Phosphates, etc

(40.05)with miscellaneous formulae

(40.05.09)Walpurgite Group

40.05.09.01 Walpurgite Bi4(UO2)(AsO4)2O4•2(H2O) P1 1

40.05.09.02 Orthowalpurgite (UO2)Bi4O4(AsO4)2•2(H2O) Pbcm 2/m 2/m 2/m

40.05.09.03 Phosphowalpurgite! (UO2)Bi4(PO4)O4•2(H2O) P1 1

Help on Strunz Class: Strunz Class:

08.EA.05 08 - PHOSPHATES, ARSENATES, VANADATES

08.E - Uranyl Phosphates and Arsenates

08.EA -UO2:RO4 = 1:2

08.EA.05 Orthowalpurgite (UO2)Bi4O4(AsO4)2•2(H2O) Pbcm 2/m 2/m 2/m

08.EA.05 Walpurgite Bi4(UO2)(AsO4)2O4•2(H2O) P1 1

08.EA.05 Phosphowalpurgite! (UO2)Bi4(PO4)O4•2(H2O) P1 1

Other Phosphowalpurgite Information

Help on References: References:

NAME( CanMin 42:963) PHYS. PROP.(CanMin 42:963) OPTIC PROP.(CanMin 42:963)

Help on See Also: See Also:

Links to other databases for Phosphowalpurgite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - GeoScienceWorld
4 - Google Images
5 - Google Scholar
6 - MinDAT
7 - Mineralienatlas (Deutsch)
8 - Online Mineral Museum
9 - QUT Mineral Atlas
10 - Ruff.Info
11 - Uranium Minerals

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

Phosphowalpurgite

(UO2)Bi4(PO4)O4•2(H2O)
Dana No: 40.05.09.03 Strunz No: 08.EA.05
Locality:

Notes: