|
Bismite Mineral Data + |
General Bismite Information |
|||
| Bi2O3 | |||
| Molecular Weight = 465.96 gm | |||
| Bismuth 89.70 % Bi 100.00 % Bi2O3 | |||
| Oxygen 10.30 % O | |||
| ______ ______ | |||
| 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. | |||
| ICSD 15072 | |||
| PDF 41-1449 | |||
Bismite Image | |||
|
|
|
||
|
|
|
||
Bismite Crystallography |
|||
| a: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), | |||
Physical Properties of Bismite |
|||
| None | |||
| 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 Bismite |
|||
| 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 |
|||
| Uniaxial (-), e=1.82, w=2, bire=0.1800. | |||
Calculated Properties of Bismite |
|||
relectron=7.34 gm/cc |
|||
| Fermion Index = 0.00005 Boson Index = 0.99995 |
|||
PEBismite =1,770.07 barns/electron |
|||
| GRapi = 0 (Gamma Ray American Petroleum Institute Units) Bismite is Not Radioactive |
|||
Bismite Classification |
|||
| 4.3.10.2 (4)Simple Oxides | |||
| (4.3)with a cation charge of 3+ (A+++2 O3) | |||
| (4.3.10)Dana Group | |||
| 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 |
|||
| NAME( 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 - 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 :
|
|||