Card No: 1611       Created: 10/04/1990    Last edition: 23/04/2015

Name: FREIBERGITE
Specification: [1], structure type - tennantite-tetrahedrite
Formula: (Cu,Fe,Zn,Ag)12Sb4S13
Symmetry Class: cubic
Space Group: I 4(-)3m
Unit Cell
Parameters:
a = 10.6100
Number of Formula Unit: Z = 2Unit Cell Volume, Å3: Vc = 1194.39
Number of Atomic Position
per full Unit Cell
:
P/U = 58 Molar Volume, cm3/mol: Vm = 359.71
Number of Reflexes used in
Structure Determination
:

-
X-ray density, g/cm3: p = 4.63
R-factor: R = 0.0530MU, 1/cm: µ = 580.849
Wave Length for Calculated
Powder Diffraction Patterns
:
Cu=1.54056Mass attenuation coefficient,
cm2/g
:
µ/p = 125.404
Theta-Interval for CPDP: T/I = 1-45