Brittle - Uneven - Very brittle fracture producing uneven fragments.
Habit:
Cryptocrystalline - Occurs as crystals too small to distinguish with the naked eye.
Habit:
Pseudo Rhombohedral - Crystals show a rhombohedral outline.
Habit:
Subhedral Crystals - Occurs as crystals which tend to exhibit a recognizable crystal shape.
Hardness:
3-4 - Calcite-Fluorite
Luminescence:
Non-fluorescent.
Luster:
Adamantine
Streak:
emerald green
Optical Properties of Jensenite
Gladstone-Dale:
CI meas= -0.025 (Excellent) - where the CI = (1-KPDmeas/KC) CI calc= -0.021 (Excellent) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1925,KPDmeas= 0.1933,KC= 0.1886 Ncalc = 1.9
Optical Data:
Biaxial (?), a=1.92
RL Bireflectance:
Weak.
RL Color:
Gray with bright green internal reflections at grain boundaries.
Reflectivity
Standardized Intensity (100%) Reflection Spectra of Jensenite in Air
λ
R1
R2
∑ R1(λ)
∑ R2(λ)
420 nm
11.00
11.30
440 nm
10.80
11.20
460 nm
10.70
11.10
480 nm
10.70
11.00
500 nm
10.70
10.80
520 nm
10.60
10.70
540 nm
10.40
10.50
560 nm
10.15
10.30
580 nm
9.90
10.00
600 nm
9.60
9.80
620 nm
9.40
9.60
640 nm
9.25
9.40
660 nm
9.15
9.30
680 nm
9.00
9.20
700 nm
9.10
9.20
Calculated Relative Intensity Colors of Jensenite in Air
Relative Intensity
0%
100%
200%
300%
400%
500%
600%
700%
800%
900%
920%
R1
R2
Calculated Properties of Jensenite
Electron Density:
Bulk Density (Electron Density)=4.40 gm/cc note: Specific Gravity of Jensenite =4.78 gm/cc.
Fermion Index:
Fermion Index = 0.02 Boson Index = 0.98
Photoelectric:
PEJensenite = 114.00 barns/electron U=PEJensenite x rElectron Density= 501.01 barns/cc.
Radioactivity:
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Jensenite is Not Radioactive
Chemical Formula: 
