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Evans H T , Konnert J A , Ross M , American Mineralogist , 85 (2000) p.1808-1815, The crystal structure of tetranatrolite from Mont Saint-Hilaire, Quebec, and its, chemical and structural relationship to paranatrolite and gonnardite
Fluorescent, Short UV=pinkish white, Long UV=pinkish white.
Luster:
Vitreous - Dull
Streak:
white
Optical Properties of Tetranatrolite
Dichroism (e):
colorless.
Dichroism (w):
colorless.
Gladstone-Dale:
CI meas= 0.014 (Superior) - where the CI = (1-KPDmeas/KC) CI calc= 0.001 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2171,KPDmeas= 0.2143,KC= 0.2173 Ncalc = 1.49 - 1.5
Optical Data:
Uniaxial (+), w=1.481, e=1.496, bire=0.0150.
Calculated Properties of Tetranatrolite
Electron Density:
Bulk Density (Electron Density)=2.25 gm/cc note: Specific Gravity of Tetranatrolite =2.25 gm/cc.
Fermion Index:
Fermion Index = 0.01 Boson Index = 0.99
Photoelectric:
PETetranatrolite = 1.48 barns/electron U=PETetranatrolite x rElectron Density= 3.32 barns/cc.
Radioactivity:
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Tetranatrolite is Not Radioactive