Card No: 5120       Created: 28/05/1992    Last edition: 13/01/2009

Name: VILLIAUMITE
Specification: [1], structure type - halite
Formula: NaF
Symmetry Class: cubic
Space Group: F m3m
Unit Cell
Parameters:
a = 4.6200
Number of Formula Unit: Z = 4Unit Cell Volume, Å3: Vc = 98.61
Number of Atomic Position
per full Unit Cell
:
P/U = 8 Molar Volume, cm3/mol: Vm = 14.85
Number of Reflexes used in
Structure Determination
:

-
X-ray density, g/cm3: p = 2.83
R-factor: -MU, 1/cm: µ = 104.476
Wave Length for Calculated
Powder Diffraction Patterns
:
Co=1.78892Mass attenuation coefficient,
cm2/g
:
µ/p = 36.953
Theta-Interval for CPDP: T/I = 1-45