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Physical Properties of Haidingerite
Cleavage:
{010} Perfect
Color:
Colorless, White.
Density:
2.95
Diaphaneity:
Transparent to Translucent
Fracture:
Sectile - Curved shavings or scrapings produced by a knife blade, (e.g. graphite).
Habit:
Encrustations - Forms crust-like aggregates on matrix.
Habit:
Fibrous - Crystals made up of fibers.
Hardness:
2-2.5 - Gypsum-Finger Nail
Luster:
Vitreous - Adamantine
Streak:
white
Optical Properties of Haidingerite
Gladstone-Dale:
CI meas= -0.025 (Excellent) - where the CI = (1-KPDmeas/KC) CI calc= -0.12 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2259,KPDmeas= 0.2068,KC= 0.2017 Ncalc = 1.54 - 1.6
Optical Data:
Biaxial (+), a=1.59, b=1.602, g=1.638, bire=0.0480, 2V(Calc)=62, 2V(Meas)=58. Dispersion r > v.
Pleochroism (x):
none.
Pleochroism (y):
none.
Pleochroism (z):
none.
Calculated Properties of Haidingerite
Electron Density:
Bulk Density (Electron Density)=2.84 gm/cc note: Specific Gravity of Haidingerite =2.95 gm/cc.
Fermion Index:
Fermion Index = 0.0004702783 Boson Index = 0.9995297217
Photoelectric:
PEHaidingerite = 30.71 barns/electron U=PEHaidingerite x rElectron Density= 87.08 barns/cc.
Radioactivity:
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Haidingerite is Not Radioactive
Chemical Formula: 
