Sengierite Mineral Data (original) (raw)

General Sengierite Information

Help on Chemical Formula: Chemical Formula:

Cu2(UO2)2V2O8•6(H2O)

Help on Composition: Composition:

Molecular Weight = 1,005.12 gm

Uranium 47.36 % U 53.73 % UO2

Vanadium 10.14 % V 18.10 % V2O5

Copper 12.64 % Cu 15.83 % CuO

Hydrogen 1.20 % H 10.75 % H2O

Oxygen 28.65 % O

______ ______

100.00 % 98.41 % = TOTAL OXIDE

Help on Empirical Formula: Empirical Formula:

Cu2(UO2)2V5+2O8•6(H2O)

Help on Environment: Environment:

Secondary mineral in uranium-bearing Cu deposits.

Help on IMA Status: IMA Status:

Valid Species (Pre-IMA) 1949

Help on Locality: Locality:

Luiswishi, Elizabethville-Jadotville area, Shava, Zaire. Link to MinDat.org Location Data.

Help on Name Origin: Name Origin:

Named for Edgar Sengier (1879-1963), executive director, Societe Generale de Belgiwue.

Help on Name Pronunciation: Name Pronunciation:

Sengierite + Pronunciation Say SENGIERITE

Help on Synonym: Synonym:

ICSD 200704

PDF 8-398

Sengierite Image

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

Sengierite Crystallography

Help on Axial Ratios: Axial Ratios:

a:b:c =1.1904:1:1.1327

Help on Cell Dimensions: Cell Dimensions:

a = 10.599, b = 8.903, c = 10.085, Z = 2; beta = 103.42° V = 925.66 Den(Calc)= 3.61

Help on Crystal System: Crystal System:

Monoclinic - PrismaticH-M Symbol (2/m) Space Group: P 21/a

Help on X Ray Diffraction: X Ray Diffraction:

By Intensity(I/Io): 9.81(1), 4.905(0.43), 3.218(0.19),

Help on Forms: Forms:

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| | Forms:( 0 1 1) ( 0 1 0) ( 1 1 1) ( 1 1 0) ( 0 0 1) Warning: this large pop-up is very compute intensive and may not work well with some computers. | | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |

Click Here for Large Sengierite Structure Window Crystal Structure:

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| | Piret P , Declercq J P , Wauters-Stoop D , Bulletin de Mineralogie , 103 (1980) p.176-178, Structure cristalline de la sengierite, Locality: Shinkolobwe, Zaire | | ------------------------------------------------------------------------------------------------------------------------------------------------------------------ |

Physical Properties of Sengierite

Help on Cleavage: Cleavage:

{001} Perfect

Help on Color: Color:

Green, Yellow green.

Help on Density: Density:

4.05

Help on Diaphaneity: Diaphaneity:

Transparent

Help on Fracture: Fracture:

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

Help on Habit: Habit:

Blocky - Crystal shape tends to be equant (e.g. feldspars).

Help on Habit: Habit:

Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline).

Help on Hardness: Hardness:

2.5 - Finger Nail

Help on Luminescence: Luminescence:

Radioactive.

Help on Luster: Luster:

Vitreous - Adamantine

Help on Streak: Streak:

light green

Optical Properties of Sengierite

Help on Gladstone-Dale: Gladstone-Dale:

CI meas= -0.216 (Poor) - where the CI = (1-KPDmeas/KC)
CI calc= -0.364 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2438,KPDmeas= 0.2173,KC= 0.1787
Ncalc = 1.65 - 1.72

Help on Optical Data: Optical Data:

Biaxial (-), a=1.77, b=1.92-1.94, g=1.94, bire=0.1700, 2V(Calc)=0-36, 2V(Meas)=~37. Dispersion r < v strong.

Help on Pleochroism (x): Pleochroism (x):

blue green.

Help on Pleochroism (y): Pleochroism (y):

olive green.

Help on Pleochroism (z): Pleochroism (z):

yellow green.

Calculated Properties of Sengierite

Help on Electron Density: Electron Density:

Bulk Density (Electron Density)=3.58 gm/cc
note: Specific Gravity of Sengierite =4.05 gm/cc.

Help on Fermion Index: Fermion Index:

Fermion Index = 0.0038029122
Boson Index = 0.9961970878

Help on Photoelectric: Photoelectric:

PESengierite =1,224.44 barns/electron
U=PESengierite x relectron=4,381.14 barns/cc.

Help on Radioactivity: Radioactivity:

GRapi = 3,566,751.97 (Gamma Ray American Petroleum Institute Units)
Concentration of Sengierite per GRapi unit = 280.37 (PPB)

Sengierite 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) 8.53 ± 2.13 grams of pure Sengierite .
Estimated Maximum U.S. Postal Shipping Size(10 mRem/hr limit, Unshielded 100 cm box) 852.78 ±213.20 grams of pure Sengierite .

Estimated Radioactivity from Sengierite - very strong

SpecimenSizeWeight/Volume(Sphere) * CalculatedActivityBecquerels(Bq) CalculatedActivityCuries (Ci) EstimatedActivityGR(api) EstimatedExposure(mRem**)/hrIf Held in HandFor One Hour
1000 gm / 7.78 cm 84,780,501 2.29E-03 3,566,751.97 1,172.63
100 gm / 3.61 cm 8,478,050 2.29E-04 356,675.20 117.26
10 gm / 1.68 cm 847,805 2.29E-05 35,667.52 11.73
1 gm / 7.78 mm 84,781 2.29E-06 3,566.75 1.17
0.1 gm / 3.61 mm 8,478 2.29E-07 356.68 0.12
0.01 gm / 1.68 mm 848 2.29E-08 35.67 0.01
0.001 gm / 0.78 mm 85 2.29E-09 3.57 0.00

Weight of pure Sengierite in grams (gm) and Calculated Diameter of a Sphere with a Density of 4.05 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

Sengierite Classification

Help on Dana Class: Dana Class:

42.06.10.01 (42)Hydrated Phosphates, etc., Containing Hydroxyl or Halogen

(42.06)where (AB)2 (XO4) Zq � x(H2O)

(42.06.10)Dana Group

42.06.10.01 Sengierite Cu2(UO2)2V2O8•6(H2O) P 21/a 2/m

Help on Strunz Class: Strunz Class:

04.HB.10 04 - OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodate

04.H - V[5,6] Vanadates

04.HB -Uranyl Sorovanadates

04.HB.10 Sengierite Cu2(UO2)2V2O8•6(H2O) P 21/a 2/m

Other Sengierite Information

Help on References: References:

NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Dana8)

Help on See Also: See Also:

Links to other databases for Sengierite :
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 - Uranium Minerals
16 - WWW-MINCRYST

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Ask about Sengierite here :
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Print or Cut-and-Paste your Sengierite Specimen Label here :

Sengierite

Cu2(UO2)2V2O8•6(H2O)
Dana No: 42.06.10.01 Strunz No: 04.HB.10
Locality:

Notes: