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Khan A A , Baur W H , Acta Crystallographica, Section B , 29 (1973) p.2721-2726, Refinement of the crystal structures of ammonium dihydrogen phosphate and, ammonium dihydrogen arsenate, Locality: synthetic, Note: known as ADP
Physical Properties of Biphosphammite
Cleavage:
None
Color:
Brown, Colorless, Gray white.
Density:
2.04
Diaphaneity:
Transparent to Translucent
Hardness:
1-2 - Between Talc and Gypsum
Luster:
Vitreous (Glassy)
Streak:
white
Optical Properties of Biphosphammite
Gladstone-Dale:
CI meas= -0.383 (Poor) - where the CI = (1-KPDmeas/KC) CI calc= -0.455 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.259,KPDmeas= 0.2463,KC= 0.1781 Ncalc = 1.35 - 1.36
Optical Data:
Uniaxial (-), e=1.48, w=1.525, bire=0.0450.
Calculated Properties of Biphosphammite
Electron Density:
Bulk Density (Electron Density)=2.10 gm/cc note: Specific Gravity of Biphosphammite =2.04 gm/cc.
Fermion Index:
Fermion Index = 0.08 Boson Index = 0.92
Photoelectric:
PEBiphosphammite = 2.06 barns/electron U=PEBiphosphammite x relectron= 4.33 barns/cc.
Radioactivity:
GRapi = 120.85 (Gamma Ray American Petroleum Institute Units)
Concentration of Biphosphammite per GRapi unit = 0.83 (%)
Estimated Radioactivity from Biphosphammite - barely detectable