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Physical Properties of Chalcophanite
Cleavage:
{???} Perfect
Color:
Blue, Bluish black, Black.
Density:
3.91
Diaphaneity:
Opaque
Fracture:
Flexible - Flexible fragments.
Habit:
Foliated - Two dimensional platy forms.
Habit:
Stalactitic - Shaped like pendant columns as stalactites or stalagmites (e.g. calcite).
Hardness:
2.5 - Finger Nail
Luminescence:
Non-fluorescent.
Luster:
Metallic
Magnetism:
Nonmagnetic
Streak:
brown
Optical Properties of Chalcophanite
Dichroism (e):
deep red.
Dichroism (w):
opaque black.
Gladstone-Dale:
CI meas= -0.361 (Poor) - where the CI = (1-KPDmeas/KC) CI calc= -0.426 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.4625,KPDmeas= 0.4412,KC= 0.3243 Ncalc = 2.21 - 2.27
Optical Data:
Uniaxial (-), e=2.72, w=2.73, bire=0.0100.
RL Anisotrophism:
Very strong.
RL Color:
White with deep red internal reflections.
RL Pleochroism:
Very strong, in gray and white.
Reflectivity
Standardized Intensity (100%) Reflection Spectra of Chalcophanite in Air
λ
R1
R2
∑ R1(λ)
∑ R2(λ)
400 nm
11.40
38.00
420 nm
11.00
36.60
440 nm
10.60
35.20
460 nm
10.30
33.80
480 nm
10.00
32.20
500 nm
9.80
30.70
520 nm
9.80
29.20
540 nm
9.70
28.00
560 nm
9.50
26.90
580 nm
9.30
26.20
600 nm
9.30
25.80
620 nm
9.20
25.40
640 nm
9.20
24.80
660 nm
9.00
24.40
680 nm
8.90
24.00
700 nm
8.90
23.80
Calculated Relative Intensity Colors of Chalcophanite in Air
Relative Intensity
0%
100%
200%
300%
400%
500%
600%
700%
800%
900%
940%
R1
R2
Calculated Properties of Chalcophanite
Electron Density:
Bulk Density (Electron Density)=3.75 gm/cc note: Specific Gravity of Chalcophanite =3.91 gm/cc.
Fermion Index:
Fermion Index = 0.0084640243 Boson Index = 0.9915359757
Photoelectric:
PEChalcophanite = 20.91 barns/electron U=PEChalcophanite x rElectron Density= 78.33 barns/cc.
Radioactivity:
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Chalcophanite is Not Radioactive
Chemical Formula: 
