|
Bismutoferrite Mineral Data + |
General Bismutoferrite Information |
|||
| BiFe+++2(SiO4)2(OH) | |||
| Molecular Weight = 521.85 gm | |||
| Iron 21.40 % Fe 30.60 % Fe2O3 | |||
| Silicon 10.76 % Si 23.03 % SiO2 | |||
| Bismuth 40.05 % Bi 44.65 % Bi2O3 | |||
| Hydrogen 0.19 % H 1.73 % H2O | |||
| Oxygen 27.59 % O | |||
| ______ ______ | |||
| 100.00 % 100.00 % = TOTAL OXIDE | |||
| BiFe3+2(SiO4)2(OH) | |||
| Isostructural with Sb analog, chapmanite. | |||
| Valid Species (Pre-IMA) 1871 | |||
| Schneeserg, Saxony, Germay. Link to MinDat.org Location Data. | |||
| Named in allusion to the composition. | |||
| ICSD 200069 | |||
| PDF 11-174 | |||
Bismutoferrite Image | |||
|
|
|
||
Bismutoferrite Crystallography |
|||
| a:b:c =0.5776:1:0.858 | |||
| a = 5.21, b = 9.02, c = 7.74, Z = 2; beta = 100.67° V = 357.45 Den(Calc)= 4.85 | |||
| Monoclinic - DomaticH-M Symbol (m) Space Group: Cm | |||
| By Intensity(I/Io): 3.87(1), 7.63(1), 2.9(0.7), | |||
Physical Properties of Bismutoferrite |
|||
| Green, Light yellow. | |||
| 4.47 | |||
| Translucent to opaque | |||
| Massive - Uniformly indistinguishable crystals forming large masses. | |||
| 6 - Orthoclase | |||
| Adamantine - Resinous | |||
Optical Properties of Bismutoferrite |
|||
| CI meas= 0.007 (Superior) - where the CI = (1-KPDmeas/KC) CI calc= 0.085 (Poor) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.2,KPDmeas= 0.217,KC= 0.2185 |
|||
| Biaxial (?), a=1.93, b=1.97, g=2.01, bire=0.0800 | |||
Calculated Properties of Bismutoferrite |
|||
relectron=4.04 gm/cc |
|||
| Fermion Index = 0.00969 Boson Index = 0.99031 |
|||
PEBismutoferrite = 719.87 barns/electron |
|||
| GRapi = 0 (Gamma Ray American Petroleum Institute Units) Bismutoferrite is Not Radioactive |
|||
Bismutoferrite Classification |
|||
| 71.1.3.1 (71)Phyllosilicate Sheets of Six-Membered Rings | |||
| (71.1)with 1:1 layers | |||
| (71.1.3)Bismutoferrite group | |||
| VIII/B.06-20 VIII - Silicates | |||
| VIII/B - Nesosubsilicates, with anions unfamiliar to tetraheders, cations of octahedral and tetrahedral orientation [4/6] | |||
| VIII/B.06 - Chapmanite - Bismutoferrite series | |||
Other Bismutoferrite Information |
|||
| NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990) | |||
| Links to other databases for Bismutoferrite : 1 - Am. Min. Crystal Structure Database 2 - Athena 3 - EUROmin Project 4 - Ecole des Mines de Paris 5 - Google Images 6 - Google Scholar 7 - Handbook of Mineralogy (MinSocAm) 8 - Handbook of Mineralogy (UofA) 9 - MinDAT 10 - MinMax(Deutsch) 11 - MinMax(English) 12 - Mineralienatlas (Deutsch) 13 - QUT Mineral Atlas 14 - Ruff.Info 15 - WWW-MINCRYST Search for Bismutoferrite using: Visit our Advertisers for Bismutoferrite : AA Mineral SpecimensB & L Fine Minerals Dan Weinrich Fine Minerals Dan Weinrich Auctions Excalibur Minerals Exceptional Minerals Fabre Minerals Greenside Minerals Heliodor John Betts Fine Minerals Mason's Minerals Mineral News Mineral of the Month Club MineralsWeb Fine Minerals The GeoZone Wrights Rock Shop Translate Bismutoferrite Mineral Data : Ask about Bismutoferrite here : Print or Cut-and-Paste your Bismutoferrite Specimen Label here :
|
|||