Bismite Mineral Data + 
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- 4.3.10.1 Claudetite As2O3 P 21/n 2/m
- 4.3.10.2 Bismite Bi2O3 P 21/c 2/m
- IV/C.02-10 Arsenolite As2O3 F d3m 4/m 3 2/m
- IV/C.02-20 Senarmontite Sb2O3 F d3m 4/m 3 2/m
- IV/C.02-30 Bismite Bi2O3 P 21/c 2/m
- IV/C.02-35 Sphaerobismoite Bi2O3 P 42212 or P 41/n Tetra
- IV/C.02-40 Sillenite Bi12SiO20 I 23 2 3
- IV/C.02-50 Chrombismite! Bi16CrO27 I 4,I 4-,I 4/m Tetra
General Bismite Information |
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 Chemical Formula: |
Bi2O3 | ||
| Composition: |
Molecular Weight = 465.96 gm | ||
| Bismuth 89.70 % Bi 100.00 % Bi2O3 | |||
| Oxygen 10.30 % O | |||
| ______ ______ | |||
| 100.00 % 100.00 % = TOTAL OXIDE | |||
| Empirical Formula: |
Bi2O3 | ||
| Environment: |
Oxidation product of various bismuth minerals. | ||
| IMA Status: |
Valid Species (Pre-IMA) 1868 | ||
| Locality: |
Goldfield, Nevada, USA. Link to MinDat.org Location Data. | ||
| Name Origin: |
Named after its composition of Bi. | ||
| Synonym: |
ICSD 15072 | ||
| PDF 41-1449 | |||
Bismite Image | |||
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Images:
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Images:
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Bismite Crystallography |
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| Axial Ratios: |
a:b:c =0.7162:1:0.9189 | ||
| Cell Dimensions: |
a = 5.83, b = 8.14, c = 7.48, Z = 4; beta = 67.066° V = 326.91 Den(Calc)= 9.47 | ||
| Crystal System: |
Monoclinic - PrismaticH-M Symbol (2/m) Space Group: P 21/c | ||
| X Ray Diffraction: |
By Intensity(I/Io): 3.253(1), 2.693(0.4), 2.708(0.4), | ||
Physical Properties of Bismite |
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| Cleavage: |
None | ||
| Color: |
Green yellow, Gray green, Yellow. | ||
| Density: |
8.5 - 9.5, Average = 9 | ||
| Diaphaniety: |
Transparent to translucent | ||
| Fracture: |
Uneven - Flat surfaces (not cleavage) fractured in an uneven pattern. | ||
| Habit: |
Earthy - Dull, clay-like texture with no visible crystalline affinities, (e.g. howlite). | ||
| Habit: |
Pulverulent - Forms a loose, poorly-coherent powdery mass. | ||
| Habit: |
Scaly - Morphology like fish scales. | ||
| Hardness: |
4-5 - Fluorite-Apatite | ||
| Luster: |
Adamantine | ||
| Streak: |
light yellow | ||
Optical Properties of Bismite |
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| Gladstone-Dale: |
CI 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 |
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| Optical Data: |
Uniaxial (-), e=1.82, w=2, bire=0.1800. | ||
Calculated Properties of Bismite |
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| Electron Density: |
relectron=7.34 gm/cc |
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| Fermion Index |
Fermion Index = 0.00005 Boson Index = 0.99995 |
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| Photoelectric: |
PEBismite =1,770.07 barns/electron |
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Bismite is Not Radioactive |
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Bismite Classification |
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| Dana Class: |
4.3.10.2 (4)Simple Oxides | ||
| (4.3)with a cation charge of 3+ (A+++2 O3) | |||
| (4.3.10)Dana Group | |||
| Strunz Class: |
IV/C.02-30 IV - Oxides | ||
| IV/C - Oxides with metal : oxygen = 2:3 (M2O3 and related compounds) | |||
| IV/C.02 - Arsenolite - Sillenite series | |||
Other Bismite Information |
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| References: |
NAME( Duda&Rejl90) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Ford32) | ||
| See Also: |
Links to other databases for Bismite : 1 -Am. Min. Crystal Structure Database 2 -Athena 3 - Crocoite.com Mineral Locations 4 - EUROmin Project 5 -Google Images 6 -Google Scholar 7 -Handbook of Mineralogy (UofA) 8 -MinDAT 9 -MinMax(Deutsch) 10 -MinMax(English) 11 -Mineralienatlas (Deutsch) 12 -QUT Mineral Atlas 13 -École des Mines de Paris Search for Bismite using: Visit our Advertisers for Bismite : Translate Bismite Mineral Data : Ask about Bismite here : Print or Cut-and-Paste your Bismite Specimen Label here :
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