Sectile - Curved shavings or scrapings produced by a knife blade, (e.g. graphite).
Habit:
Anhedral Grains - Granular minerals without the expression of crystal shapes
Habit:
Fibrous - Crystals made up of fibers.
Hardness:
2.5-3 - Finger Nail-Calcite
Luminescence:
Non-fluorescent.
Luster:
Vitreous (Glassy)
Streak:
white
Optical Properties of Ershovite
Gladstone-Dale:
CI meas= 0.053 (Good) - where the CI = (1-KPDmeas/KC) CI calc= 0.053 (Good) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2124,KPDmeas= 0.2124,KC= 0.2242 Ncalc = 1.6 - 1.62
Optical Data:
Biaxial (+), a=1.569, b=1.574, g=1.59, bire=0.0210, 2V(Calc)=60, 2V(Meas)=58. Dispersion medium, r > v.
Pleochroism (x):
light green or yellowish green.
Pleochroism (y):
light green or yellowish green.
Pleochroism (z):
dark olive green or dark olive green.
Calculated Properties of Ershovite
Electron Density:
Bulk Density (Electron Density)=2.71 gm/cc note: Specific Gravity of Ershovite =2.72 gm/cc.
Fermion Index:
Fermion Index = 0.01 Boson Index = 0.99
Photoelectric:
PEErshovite = 4.83 barns/electron U=PEErshovite x relectron= 13.09 barns/cc.
Radioactivity:
GRapi = 165.15 (Gamma Ray American Petroleum Institute Units)
Concentration of Ershovite per GRapi unit = 0.61 (%)
Estimated Radioactivity from Ershovite - barely detectable