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Physical Properties of Ahlfeldite
Cleavage:
{110} Distinct, {103} Distinct
Color:
Pink brown, Apple green, Red.
Density:
3.37
Diaphaneity:
Transparent
Fracture:
Brittle - Generally displayed by glasses and most non-metallic minerals.
Habit:
Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline).
Hardness:
2-2.5 - Gypsum-Finger Nail
Luster:
Vitreous (Glassy)
Streak:
light green
Optical Properties of Ahlfeldite
Gladstone-Dale:
CI meas= -0.04 (Good) - where the CI = (1-KPDmeas/KC) CI calc= 0.004 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2115,KPDmeas= 0.2209,KC= 0.2124 Ncalc = 1.72 - 1.75
Optical Data:
Biaxial (-), a=1.703, b=1.744, g=1.786, bire=0.0830, 2V(Calc)=88, 2V(Meas)=85. Dispersion r < v.
Pleochroism (x):
very pale green.
Pleochroism (y):
pale green.
Pleochroism (z):
green.
Calculated Properties of Ahlfeldite
Electron Density:
Bulk Density (Electron Density)=3.36 gm/cc note: Specific Gravity of Ahlfeldite =3.52 gm/cc.
Fermion Index:
Fermion Index = 0.02 Boson Index = 0.98
Photoelectric:
PEAhlfeldite = 36.69 barns/electron U=PEAhlfeldite x rElectron Density= 123.20 barns/cc.
Radioactivity:
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Ahlfeldite is Not Radioactive
Chemical Formula: 
