General Bismite InformationBi2O3 |
Molecular Weight = 465.96 gm |
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Bismuth 89.70 % Bi 100.00 % Bi2O3 |
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Oxygen 10.30 % O |
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100.00 % 100.00 % = TOTAL OXIDE |
Bi2O3 |
Oxidation product of various bismuth minerals. |
Valid Species (Pre-IMA) 1868 |
Goldfield, Nevada, USA. Link to MinDat.org Location Data. |
Named after its composition of Bi. |
Bismite |
ICSD 15072 |
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PDF 41-1449 |
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Bismite Crystallographya:b:c =0.7162:1:0.9189 |
a = 5.83, b = 8.14, c = 7.48, Z = 4; beta = 67.066° V = 326.91 Den(Calc)= 9.47 |
Monoclinic - PrismaticH-M Symbol (2/m) Space Group: P 21/c |
By Intensity(I/Io): 3.253(1), 2.693(0.4), 2.708(0.4), |
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Mouse
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| Physical Properties of BismiteNone |
Green yellow, Gray green, Yellow. |
8.5 - 9.5, Average = 9 |
Transparent to translucent |
Uneven - Flat surfaces (not cleavage) fractured in an uneven pattern. |
Earthy - Dull, clay-like texture with no visible crystalline affinities, (e.g. howlite). |
Pulverulent - Forms a loose, poorly-coherent powdery mass. |
Scaly - Morphology like fish scales. |
4-5 - Fluorite-Apatite |
Adamantine |
light yellow |
| Optical Properties of BismiteCI meas= 0.339 (Poor) - where the CI = (1-KPDmeas/KC) |
CI calc= 0.372 (Poor) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.0961,KPDmeas= 0.1011,KC= 0.153 Ncalc = 2.3 - 2.45 Uniaxial (-), e=1.82, w=2, bire=0.1800. |
| Calculated Properties of BismiteBulk Density (Electron Density)=7.34 gm/cc |
note: Specific Gravity of Bismite =9.00 gm/cc. Fermion Index = 0.0000503415 |
Boson Index = 0.9999496585 PEBismite =1,770.07 barns/electron |
U=PEBismite x rElectron Density=12991.76 barns/cc. GRapi = 0 (Gamma Ray American Petroleum Institute Units) |
Bismite is Not Radioactive | Bismite Classification04.03.10.02 (04)Simple Oxides |
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(04.03)with a cation charge of 3+ (A+++2 O3) |
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(04.03.10)Claudetite group |
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04.CB.60 04 - OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodate |
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04.C - Metal:Oxygen = 2:3, 3:5, and Similar |
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04.CB -With medium-sized cations |
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| Other Bismite InformationNAME( Duda&Rejl90) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Ford32) |
Links to other databases for Bismite : |
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 Search for Bismite using: Visit our Advertisers for Bismite : B and L Fine MineralsDakota Matrix Minerals Dan & Diana Weinrich Mineral Auctions Excalibur Mineral Corp. Exceptional Minerals John Betts Fine Minerals Mineral News Mineral of the Month Club NY/NJ Gem & Mineral Show TIMA Mineral Analyzer Weinrich Minerals, Inc. Wright's Rock Shop Ask about Bismite here : Print or Cut-and-Paste your Bismite Specimen Label here :
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