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Physical Properties of Bixbyite
Cleavage:
{111} Imperfect, {111} Imperfect, {111} Imperfect
Color:
Black.
Density:
4.95
Diaphaneity:
Opaque
Fracture:
Uneven - Flat surfaces (not cleavage) fractured in an uneven pattern.
Habit:
Crystalline - Fine - Occurs as well-formed fine sized crystals.
Habit:
Massive - Granular - Common texture observed in granite and other igneous rock.
Hardness:
6-6.5 - Orthoclase-Pyrite
Luminescence:
Non-fluorescent.
Luster:
Metallic
Streak:
black
Optical Properties of Bixbyite
Optical Data:
NCalc= 2.56 - from Gladstone-Dale relationship (KC = 0.3045) where Ncalc=Dcalc*KC+1 NCalc= 2.51 - from Gladstone-Dale relationship (KC = 0.3045) where Ncalc=Dmeas*KC+1
Reflectivity
Standardized Intensity (100%) Reflection Spectra of Bixbyite in Air
λ
R
∑ R(λ)
400 nm
24.70
420 nm
24.10
440 nm
23.50
460 nm
23.00
480 nm
22.80
500 nm
22.90
520 nm
23.20
540 nm
23.60
560 nm
23.50
580 nm
23.20
600 nm
22.90
620 nm
22.70
640 nm
22.40
660 nm
22.20
680 nm
22.20
700 nm
22.10
Calculated Relative Intensity Colors of Bixbyite in Air
Relative Intensity
0%
40%
80%
100%
120%
160%
200%
240%
280%
320%
360%
390%
R
Calculated Properties of Bixbyite
Electron Density:
Bulk Density (Electron Density)=4.82 gm/cc note: Specific Gravity of Bixbyite =5.12 gm/cc.
Fermion Index:
Fermion Index = 0.0038844318 Boson Index = 0.9961155682
Photoelectric:
PEBixbyite = 19.12 barns/electron U=PEBixbyite x rElectron Density= 92.14 barns/cc.
Radioactivity:
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Bixbyite is Not Radioactive
Chemical Formula: 
