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Physical Properties of Reddingite
Cleavage:
{010} Indistinct
Color:
White, Yellowish white, Colorless, Reddish brown, Dark brown.
Density:
3.1
Diaphaneity:
Transparent to Translucent
Fracture:
Brittle - Uneven - Very brittle fracture producing uneven fragments.
Habit:
Crystalline - Fine - Occurs as well-formed fine sized crystals.
Habit:
Granular - Generally occurs as anhedral to subhedral crystals in matrix.
Hardness:
3.5 - Copper Penny
Luminescence:
Non-fluorescent.
Luster:
Vitreous - Resinous
Streak:
white
Optical Properties of Reddingite
Gladstone-Dale:
CI meas= -0.012 (Superior) - where the CI = (1-KPDmeas/KC) CI calc= 0.038 (Excellent) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2031,KPDmeas= 0.2135,KC= 0.211 Ncalc = 1.65 - 1.69
Optical Data:
Biaxial (+), a=1.643-1.658, b=1.648-1.664, g=1.674-1.685, bire=0.0270-0.0310, 2V(Calc)=48-58, 2V(Meas)=41-65. Dispersion strong, r > v.
Calculated Properties of Reddingite
Electron Density:
Bulk Density (Electron Density)=3.02 gm/cc note: Specific Gravity of Reddingite =3.10 gm/cc.
Fermion Index:
Fermion Index = 0.0002088635 Boson Index = 0.9997911365
Photoelectric:
PEReddingite = 11.00 barns/electron U=PEReddingite x rElectron Density= 33.20 barns/cc.
Radioactivity:
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Reddingite is Not Radioactive
Chemical Formula: 
