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Bachmann H G , Barnes W H , The Canadian Mineralogist , 7 (1962) p.219-235, The crystal structure of a sodium-calcium variety of metahewettite, Sample: anhydrous
View Additional jPOWD Structure files for Metahewettite
[1]
Physical Properties of Metahewettite
Color:
Red.
Density:
2.5
Luminescence:
Non-fluorescent.
Luster:
Silky
Magnetism:
Nonmagnetic
Streak:
brownish red
Optical Properties of Metahewettite
Gladstone-Dale:
CI meas= -0.228 (Poor) - where the CI = (1-KPDmeas/KC) CI calc= -0.007 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.3311,KPDmeas= 0.404,KC= 0.3289 Ncalc = 1.82 - 2
Optical Data:
Biaxial (-), a=1.7, b=2.1, g=2.23, bire=0.5300
Calculated Properties of Metahewettite
Electron Density:
Bulk Density (Electron Density)=2.94 gm/cc note: Specific Gravity of Metahewettite =3.05 gm/cc.
Fermion Index:
Fermion Index = 0.0014716431 Boson Index = 0.9985283569
Photoelectric:
PEMetahewettite = 9.69 barns/electron U=PEMetahewettite x rElectron Density= 28.50 barns/cc.
Radioactivity:
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Metahewettite is Not Radioactive