Card No: 319       Created: 16/04/2000    Last edition: 13/01/2009

Name: ARGYRODITE
Specification: [3], gamma, analogue
Formula: Ag7PSe6
Symmetry Class: cubic
Space Group: F 4(-)3m
Unit Cell
Parameters:
a = 10.8380
Number of Formula Unit: Z = 4Unit Cell Volume, Å3: Vc = 1273.06
Number of Atomic Position
per full Unit Cell
:
P/U = 152 Molar Volume, cm3/mol: Vm = 191.70
Number of Reflexes used in
Structure Determination
:

NR = 1116
X-ray density, g/cm3: p = 6.58
R-factor: R = 0.0326MU, 1/cm: µ = 1097.849
Wave Length for Calculated
Powder Diffraction Patterns
:
Cu=1.54056Mass attenuation coefficient,
cm2/g
:
µ/p = 166.906
Theta-Interval for CPDP: T/I = 1-45