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Physical Properties of Parapierrotite
Cleavage:
None
Color:
Black.
Density:
5.04
Diaphaneity:
Opaque
Habit:
Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline).
Hardness:
2.5-3 - Finger Nail-Calcite
Luster:
Sub Metallic
Streak:
gray
Optical Properties of Parapierrotite
RL Anisotrophism:
Distinct, brownish gray to bluish gray.
RL Color:
White with a creamy tint with rare purple-red internal reflections.
RL Pleochroism:
Weak in air , grayish white to brownish gray in oil.
Reflectivity
Standardized Intensity (100%) Reflection Spectra of Parapierrotite in Air
λ
R1
R2
∑ R1(λ)
∑ R2(λ)
400 nm
31.70
42.80
420 nm
31.30
42.20
440 nm
30.90
41.60
460 nm
30.30
41.10
480 nm
29.90
40.60
500 nm
29.50
40.30
520 nm
29.30
40.00
540 nm
29.10
39.70
560 nm
28.80
39.20
580 nm
28.60
38.50
600 nm
28.20
37.90
620 nm
27.90
37.10
640 nm
27.30
36.10
660 nm
26.70
35.10
680 nm
26.00
34.10
700 nm
26.60
34.20
Calculated Relative Intensity Colors of Parapierrotite in Air
Relative Intensity
0%
40%
80%
100%
120%
160%
200%
240%
280%
320%
R1
R2
Calculated Properties of Parapierrotite
Electron Density:
Bulk Density (Electron Density)=4.30 gm/cc note: Specific Gravity of Parapierrotite =4.94 gm/cc.
Fermion Index:
Fermion Index = 0.0018471832 Boson Index = 0.9981528168
Photoelectric:
PEParapierrotite = 510.13 barns/electron U=PEParapierrotite x rElectron Density=2,193.00 barns/cc.
Radioactivity:
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Parapierrotite is Not Radioactive
Chemical Formula: 
