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Appel P W U , Bigi S , Brigatti M F , European Journal of Mineralogy , 11 (1999) p.483-491, Crystal structure and chemistry of yuanfuliite, and its relationships with warwickite, Sample: 425359
View Additional jPOWD Structure files for Yuanfuliite
[1]
Physical Properties of Yuanfuliite
Cleavage:
{100} Perfect
Color:
Black.
Density:
4.02
Diaphaneity:
Nearly opaque
Fracture:
Brittle - Generally displayed by glasses and most non-metallic minerals.
Habit:
Disseminated - Occurs in small, distinct particles dispersed in matrix.
Hardness:
6-6.5 - Orthoclase-Pyrite
Luster:
Adamantine
Streak:
brownish black
Optical Properties of Yuanfuliite
Optical Data:
Biaxial (?)
NCalc= 1.9 - from Gladstone-Dale relationship (KC = 0.2409) where Ncalc=Dcalc*KC+1 NCalc= 1.97 - from Gladstone-Dale relationship (KC = 0.2409) where Ncalc=Dmeas*KC+1
Pleochroism (x):
brown.
Pleochroism (z):
very dark brown or dark brownish red.
RL Anisotrophism:
Weak.
RL Color:
Pale gray with dark red internal reflections.
Reflectivity
Standardized Intensity (100%) Reflection Spectra of Yuanfuliite in Air
λ
R
∑ R(λ)
420 nm
1.20
440 nm
7.70
460 nm
9.77
480 nm
10.11
500 nm
10.12
520 nm
10.03
540 nm
9.66
560 nm
9.40
580 nm
9.38
600 nm
9.27
620 nm
9.22
640 nm
9.98
660 nm
9.79
680 nm
5.33
700 nm
1.33
Calculated Relative Intensity Colors of Yuanfuliite in Air
Relative Intensity
0%
100%
200%
300%
400%
500%
600%
700%
800%
900%
1000%
R
Calculated Properties of Yuanfuliite
Electron Density:
Bulk Density (Electron Density)=3.62 gm/cc note: Specific Gravity of Yuanfuliite =3.74 gm/cc.
Fermion Index:
Fermion Index = 0.03 Boson Index = 0.97
Photoelectric:
PEYuanfuliite = 9.94 barns/electron U=PEYuanfuliite x rElectron Density= 36.02 barns/cc.
Radioactivity:
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Yuanfuliite is Not Radioactive