General Billietite Information Chemical Formula: |
Ba(UO2)6O4(OH)6•8(H2O) |
Composition: |
Molecular Weight = 2,067.66 gm |
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Barium 6.64 % Ba 7.42 % BaO |
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Uranium 69.07 % U 78.36 % UO2 |
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Hydrogen 1.07 % H 9.58 % H2O |
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Oxygen 23.21 % O |
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100.00 % 95.36 % = TOTAL OXIDE |
Empirical Formula: |
Ba(UO2)6O4(OH)6•8(H2O) |
Environment: |
Occurs as an uncommon product of uraninite. |
IMA Status: |
Valid Species (Pre-IMA) 1947 |
Locality: |
At Shinkolobwe and the Musonoi mine, Kolwezi, Shaba Province, Congo (Zaire). Link to MinDat.org Location Data. |
Name Origin: |
Named for Valere Louis Billiet (1903-1944), Belgian crystallographer, University of Ghent, Ghent, Belgium. |
Name Pronunciation: |
Billietite + Pronunciation |
Synonym: |
ICSD 202478 |
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PDF 29-218 |
| | Billietite Image
Images:
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Billietite Crystallography Axial Ratios: |
a:b:c =0.4003:1:0.2368 |
Cell Dimensions: |
a = 12.0941, b = 30.211, c = 7.1563, Z = 4; V = 2,614.73 Den(Calc)= 5.25 |
Crystal System: |
Orthorhombic - PyramidalH-M Symbol (mm2) Space Group: Pbn21 |
X Ray Diffraction: |
By Intensity(I/Io): 7.56(1), 3.183(0.35), 3.78(0.25), |
Crystal Structure:
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Mouse
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| Physical Properties of Billietite Cleavage: |
{001} Perfect |
Color: |
Yellow brown, Golden yellow. |
Density: |
5.27 - 5.29, Average = 5.27 |
Diaphaneity: |
Transparent to Translucent |
Luster: |
Adamantine |
Streak: |
yellow |
| Optical Properties of Billietite 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 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 Electron Density: |
Bulk Density (Electron Density)=4.44 gm/cc |
note: Specific Gravity of Billietite =5.28 gm/cc. Fermion Index: |
Fermion Index = 0.01 |
Boson Index = 0.99 Photoelectric: |
PEBillietite =1,893.82 barns/electron |
U=PEBillietite x relectron=8,414.80 barns/cc. Radioactivity: |
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GRapi = 4,954,580.62 (Gamma Ray American Petroleum Institute Units)
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 .
Weight of pure Billietite in grams (gm) and Calculated Diameter of a Sphere with a Density of 5.28 gm/cc.* | Billietite Classification Dana Class: |
05.07.01.03 (05)Oxides Containing Uranium and Thorium |
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(05.07)with alkaline or hydrated hydroxide components |
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(05.07.01)Becquerelite Group |
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Strunz Class: |
04.GB.10 04 - OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodate |
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04.G - Uranyl Hydroxides |
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04.GB -With additional cations (K, Ca, Ba, Pb, etc.); with mainly UO2(O,OH)5 pentagonal polyhedra |
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| Other Billietite Information References: |
NAME( AntBidBlaNic3) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990) |
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 16 - WWW-MINCRYST Search for Billietite using: Visit our Advertisers for Billietite : A Bijoux Google Search for BillietiteAdam's Minerals Google Search for Billietite Cape Minerals Google Search for Billietite Dakota Matrix Minerals Google Search for Billietite Excalibur Mineral Corp. Google Search for Billietite Exceptional Minerals Google Search for Billietite John Betts Fine Minerals Search for Billietite McDougall Minerals Google Search for Billietite Mineral News Website Link Rock and Mineral Shows Google Search for Billietite Weinrich Minerals, Inc. Google Search for Billietite Ask about Billietite here : Print or Cut-and-Paste your Billietite Specimen Label here :
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