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Zhukhlistov A P , Zvyagin B B , Soviet Physics Crystallography , 22 (1977) p.419-423, Determination of the crystal structures of chapmanite and bismuthoferrite by, high-voltage electron diffraction, Locality: Schneeberg, Saxony, Germany
Physical Properties of Bismutoferrite
Color:
Green, Light yellow.
Density:
4.47
Diaphaneity:
Translucent to opaque
Habit:
Massive - Uniformly indistinguishable crystals forming large masses.
Hardness:
6 - Orthoclase
Luster:
Adamantine - Resinous
Optical Properties of Bismutoferrite
Gladstone-Dale:
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 Ncalc = 1.98 - 2.06
Optical Data:
Biaxial (?), a=1.93, b=1.97, g=2.01, bire=0.0800
Calculated Properties of Bismutoferrite
Electron Density:
Bulk Density (Electron Density)=4.04 gm/cc note: Specific Gravity of Bismutoferrite =4.47 gm/cc.
Fermion Index:
Fermion Index = 0.0096974151 Boson Index = 0.9903025849
Photoelectric:
PEBismutoferrite = 719.87 barns/electron U=PEBismutoferrite x rElectron Density=2,910.46 barns/cc.
Radioactivity:
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Bismutoferrite is Not Radioactive
Bismutoferrite Classification
Dana Class:
71.01.03.01(71)Phyllosilicate Sheets of Six-Membered Rings