Card No: 3779       Created: 23/05/1991    Last edition: 13/01/2009

Name: PROUSTITE
Specification: [1], structure type - pyrargyrite
Formula: Ag3AsS3
Symmetry Class: trigonal
Space Group: R 3c
Unit Cell
Parameters:
a = 10.8000 | c = 8.6900
Number of Formula Unit: Z = 6Unit Cell Volume, Å3: Vc = 877.80
Number of Atomic Position
per full Unit Cell
:
P/U = 42 Molar Volume, cm3/mol: Vm = 88.12
Number of Reflexes used in
Structure Determination
:

-
X-ray density, g/cm3: p = 5.61
R-factor: -MU, 1/cm: µ = 968.579
Wave Length for Calculated
Powder Diffraction Patterns
:
Cu=1.54056Mass attenuation coefficient,
cm2/g
:
µ/p = 172.555
Theta-Interval for CPDP: T/I = 1-45