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Billietite Mineral Data

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General Billietite Information

Help on Chemical  Formula: Chemical Formula: Ba(UO2)6O4(OH)6•8(H2O)
Help on Composition: Composition: Molecular Weight = 2,067.66 gm
   Barium     6.64 %  Ba    7.42 % BaO
   Uranium   69.07 %  U    78.36 % UO2
   Hydrogen   1.07 %  H     9.58 % H2O
   Oxygen    23.21 %  O
            ______        ______ 
            100.00 %       95.36 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Ba(UO2)6O4(OH)6•8(H2O)
Help on Environment: Environment: Occurs as an uncommon product of uraninite.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1947
Help on Locality: Locality: At Shinkolobwe and the Musonoi mine, Kolwezi, Shaba Province, Congo (Zaire). Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Valere Louis Billiet (1903-1944), Belgian crystallographer, University of Ghent, Ghent, Belgium.
Help on Name Pronunciation: Name Pronunciation: Billietite + Pronunciation Say BILLIETITE
Help on Synonym: Synonym: ICSD 202478
  PDF 29-218

Billietite Image

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Comments: Clear, yellow crystal of billietite.
Location: Shinkolobwe mine, Tantara, Shaba, Dem. Repub. Congo. Scale: Size Not Given.
© Lou Perloff / Photo Atlas of Minerals

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  Studtite   Billietite

Comments: Acicular, white sprays of studtite crystals on yellow, tabular billietite.
Location: Shinkolobwe mine, Tantara, Shaba, Democratic Republic of the Congo. Scale: Not Given.
© Lou Perloff / Photo Atlas of Minerals

Billietite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =0.4003:1:0.2368
Help on Cell Dimensions: Cell Dimensions: a = 12.0941, b = 30.211, c = 7.1563, Z = 4; V = 2,614.73 Den(Calc)= 5.25
Help on Crystal System: Crystal System: Orthorhombic - Pyramidal H-M Symbol (mm2) Space Group: Pbn21
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 7.56(1), 3.183(0.35), 3.78(0.25),

Physical Properties of Billietite

Help on Cleavage: Cleavage: {001} Perfect
Help on Color: Color: Yellow brown, Golden yellow.
Help on Density: Density: 5.27 - 5.29, Average = 5.27
Help on Diaphaneity: Diaphaneity: Transparent to Translucent
Help on Luster: Luster: Adamantine
Help on Streak: Streak: yellow

Optical Properties of Billietite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.24 (Poor) - where the CI = (1-KPDmeas/KC)
CI calc= -0.247 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1502,KPDmeas= 0.1493,KC= 0.1204
Ncalc = 1.63 - 1.64
Help on Optical Data: Optical Data: Biaxial (?), a=1.76, b=1.8, g=1.805, bire=0.0450, 2V(Calc)=38, 2V(Meas)=37.

Calculated Properties of Billietite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=4.44 gm/cc
note: Specific Gravity of Billietite =5.28 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.01
Boson Index = 0.99
Help on Photoelectric: Photoelectric: PEBillietite =1,893.82 barns/electron
U=PEBillietite x relectron=8,414.80 barns/cc.
Help on Radioactivity: Radioactivity:

GRapi = 4,954,580.62 (Gamma Ray American Petroleum Institute Units)
Concentration of Billietite per GRapi unit = 201.83 (PPB)

Billietite 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) 6.14 ± 1.53 grams of pure Billietite .
Estimated Maximum U.S. Postal Shipping Size (10 mRem/hr limit, Unshielded 100 cm box) 613.91 ±153.48 grams of pure Billietite .

Estimated Radioactivity from Billietite - very strong
Curies (Ci)
If Held in Hand
For One Hour
1000 gm / 7.13 cm 123,638,993 3.34E-03 4,954,580.62 1,628.90
100 gm / 3.31 cm 12,363,899 3.34E-04 495,458.06 162.89
10 gm / 1.54 cm 1,236,390 3.34E-05 49,545.81 16.29
1 gm / 7.13 mm 123,639 3.34E-06 4,954.58 1.63
0.1 gm / 3.31 mm 12,364 3.34E-07 495.46 0.16
0.01 gm / 1.54 mm 1,236 3.34E-08 49.55 0.02
0.001 gm / 0.71 mm 124 3.34E-09 4.95 0.00

Weight of pure Billietite in grams (gm) and Calculated Diameter of a Sphere with a Density of 5.28 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

Billietite Classification

Help on  Dana Class: Dana Class: (05)Oxides Containing Uranium and Thorium
  (05.07)with alkaline or hydrated hydroxide components
  (05.07.01)Becquerelite Group Compreignacite K2(UO2)6O4(OH)6•8(H2O) Pnmn 2/m 2/m 2/m Becquerelite Ca(UO2)6O4(OH)6•8(H2O) Pn21a mm2 Billietite Ba(UO2)6O4(OH)6•8(H2O) Pbn21 mm2
Help on  Strunz Class: Strunz Class: 04.GB.10 04 - OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodate
  04.G - Uranyl Hydroxides
  04.GB -With additional cations (K, Ca, Ba, Pb, etc.); with mainly UO2(O,OH)5 pentagonal polyhedra
04.GB.10 Billietite Ba(UO2)6O4(OH)6•8(H2O) Pbn21 mm2
04.GB.10 Becquerelite Ca(UO2)6O4(OH)6•8(H2O) Pn21a mm2
04.GB.10 Protasite Ba(UO2)3O3(OH)2•3(H2O) Pn m

Other Billietite Information

Help on References: References: NAME( AntBidBlaNic3) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)
Help on See Also: See Also: Links to other databases for Billietite :
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

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Dana No: Strunz No: 04.GB.10





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