Card No: 628       Created: 06/06/1988    Last edition: 02/03/2012

Name: BRIARTITE
Specification: [1], structure type - stannite
Formula: Cu2FeGeS4
Symmetry Class: tetragonal
Space Group: I 4(-)2m
Unit Cell
Parameters:
a = 5.3250 | c = 10.5100
Number of Formula Unit: Z = 2Unit Cell Volume, Å3: Vc = 298.02
Number of Atomic Position
per full Unit Cell
:
P/U = 16 Molar Volume, cm3/mol: Vm = 89.75
Number of Reflexes used in
Structure Determination
:

NR = 557
X-ray density, g/cm3: p = 4.28
R-factor: R = 0.0800MU, 1/cm: µ = 342.676
Wave Length for Calculated
Powder Diffraction Patterns
:
Co=1.78892Mass attenuation coefficient,
cm2/g
:
µ/p = 80.153
Theta-Interval for CPDP: T/I = 1-45