Microscopic Crystals - Crystals visible only with microscopes.
Habit:
Subhedral Crystals - Occurs as crystals which tend to exhibit a recognizable crystal shape.
Habit:
Twinning Common - Crystals are usually twinned.
Hardness:
4 - Fluorite
Luster:
Adamantine
Streak:
white
Optical Properties of Chekhovichite
Gladstone-Dale:
CI meas= -0.245 (Poor) - where the CI = (1-KPDmeas/KC) CI calc= -0.253 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2242,KPDmeas= 0.2229,KC= 0.179 Ncalc = 2.22 - 2.23
Optical Data:
Biaxial (-), a=2.45, b=2.5, g=2.65, bire=0.2000, 2V(Calc)=64, 2V(Meas)=65. Dispersion r < v distinct.
RL Anisotrophism:
Marked.
RL Bireflectance:
Observable.
RL Color:
Pale gray to gray with white internal reflections.
Reflectivity
Standardized Intensity (100%) Reflection Spectra of Chekhovichite in Air
λ
R1
R2
∑ R1(λ)
∑ R2(λ)
400 nm
18.90
21.40
420 nm
18.80
21.40
440 nm
18.70
21.30
460 nm
18.60
21.30
480 nm
18.30
21.20
500 nm
18.10
21.20
520 nm
18.10
21.10
540 nm
17.90
21.00
560 nm
17.70
20.80
580 nm
17.60
20.70
600 nm
17.40
20.60
620 nm
17.30
20.50
640 nm
17.30
20.40
660 nm
17.20
20.30
680 nm
17.20
20.20
700 nm
17.10
20.20
Calculated Relative Intensity Colors of Chekhovichite in Air
Relative Intensity
0%
50%
100%
150%
200%
250%
300%
350%
400%
450%
500%
R1
R2
Calculated Properties of Chekhovichite
Electron Density:
Bulk Density (Electron Density)=5.78 gm/cc note: Specific Gravity of Chekhovichite =6.88 gm/cc.
Fermion Index:
Fermion Index = 0.06 Boson Index = 0.94
Photoelectric:
PEChekhovichite = 830.21 barns/electron U=PEChekhovichite x rElectron Density=4,795.19 barns/cc.
Radioactivity:
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Chekhovichite is Not Radioactive
Chemical Formula: 
