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Pushcharovsky D Y , Pekov I V , Pasero M , Gobechiya E R , Merlino S , Zubkova N V , Crystallography Reports , 47 (2002) p.748-752, Crystal structure of cation-deficient calciohilairite and possible mechanisms of, decationization in mixed-framework minerals, Locality: Lovozero massif, Kola Peninsula, Russia
Physical Properties of Calciohilairite
Cleavage:
None
Color:
Blue white, White.
Density:
2.68
Diaphaneity:
Translucent
Hardness:
4 - Fluorite
Luster:
Vitreous (Glassy)
Streak:
white
Optical Properties of Calciohilairite
Gladstone-Dale:
CI meas= -0.023 (Excellent) - where the CI = (1-KPDmeas/KC) CI calc= -0.004 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2273,KPDmeas= 0.2315,KC= 0.2264 Ncalc = 1.61 - 1.62
Optical Data:
Uniaxial (-), e=1.619, w=1.622, bire=0.0030.
Calculated Properties of Calciohilairite
Electron Density:
Bulk Density (Electron Density)=2.69 gm/cc note: Specific Gravity of Calciohilairite =2.73 gm/cc.
Fermion Index:
Fermion Index = 0.03 Boson Index = 0.97
Photoelectric:
PECalciohilairite = 30.77 barns/electron U=PECalciohilairite x rElectron Density= 82.88 barns/cc.
Radioactivity:
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Calciohilairite is Not Radioactive