Card No: 5605       Created: 28/05/2003    Last edition: 13/01/2009

Name: FREIBERGITE
Specification: [2], structure type - tennantite-tetrahedrite
Formula: Cu9.96Fe0.35Zn1.92Ag0.06Sb3.87S12.82
Symmetry Class: cubic
Space Group: I 4(-)3m
Unit Cell
Parameters:
a = 10.3820
Number of Formula Unit: Z = 2Unit Cell Volume, Å3: Vc = 1119.03
Number of Atomic Position
per full Unit Cell
:
P/U = 58 Molar Volume, cm3/mol: Vm = 337.02
Number of Reflexes used in
Structure Determination
:

NR = 1260
X-ray density, g/cm3: p = 4.97
R-factor: R = 0.0630MU, 1/cm: µ = 632.930
Wave Length for Calculated
Powder Diffraction Patterns
:
Cu=1.54056Mass attenuation coefficient,
cm2/g
:
µ/p = 127.425
Theta-Interval for CPDP: T/I = 1-45