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Zhuravlev N N , Soviet Journal of Experimental and Theoretical Physics , 5 (1957) p.1064-1072, Structure of superconductors. X. Thermal, microscopic and x-ray investigation, of the bismuth-palladium system, Locality: synthetic, Note: low temperature modification, Note: unable to reproduce reported bond lengths
Physical Properties of Froodite
Cleavage:
{001} Perfect, {100} Good
Color:
Gray.
Density:
12.5 - 12.6, Average = 12.55
Diaphaneity:
Opaque
Fracture:
Brittle - Uneven - Very brittle fracture producing uneven fragments.
Hardness:
2.5 - Finger Nail
Luster:
Metallic
Streak:
black
Optical Properties of Froodite
RL Anisotrophism:
Evident, in light and dark grays.
RL Color:
Creamy white.
Reflectivity
Standardized Intensity (100%) Reflection Spectra of Froodite in Air
λ
R1
R2
∑ R1(λ)
∑ R2(λ)
420 nm
50.70
52.90
440 nm
51.90
54.30
460 nm
53.10
55.50
480 nm
54.30
56.40
500 nm
55.20
57.20
520 nm
55.70
57.80
540 nm
56.10
58.40
560 nm
56.50
59.00
580 nm
56.90
59.60
600 nm
57.40
60.20
620 nm
57.70
60.70
640 nm
58.00
61.10
660 nm
58.50
61.40
680 nm
58.80
62.00
700 nm
59.30
63.00
Calculated Relative Intensity Colors of Froodite in Air
Relative Intensity
0%
20%
40%
60%
80%
100%
120%
140%
160%
170%
R1
R2
Calculated Properties of Froodite
Electron Density:
Bulk Density (Electron Density)=9.31 gm/cc note: Specific Gravity of Froodite =11.5 gm/cc.
Fermion Index:
Fermion Index = 0.04 Boson Index = 0.96
Photoelectric:
PEFroodite =1,638.85 barns/electron U=PEFroodite x rElectron Density=15265.45 barns/cc.
Radioactivity:
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Froodite is Not Radioactive
Froodite Classification
Dana Class:
02.12.15.01(02)Sulfides - Including Selenides and Tellurides