Card No: 8315       Created: 8/06/11    Last edition: 13/03/2013

Name: PYRRHOTITE
Specification: [6], structure type - nickeline
Formula: FeS
Symmetry Class: hexagonal
Space Group: P 6(3)/mmc
Unit Cell
Parameters:
a = 3.4300 | c = 5.7900
Number of Formula Unit: Z = 2Unit Cell Volume, Å3: Vc = 58.99
Number of Atomic Position
per full Unit Cell
:
P/U = 4 Molar Volume, cm3/mol: Vm = 17.77
Number of Reflexes used in
Structure Determination
:

-
X-ray density, g/cm3: p = 5.01
R-factor: -MU, 1/cm: µ = 407.359
Wave Length for Calculated
Powder Diffraction Patterns
:
Co=1.78892Mass attenuation coefficient,
cm2/g
:
µ/p = 81.241
Theta-Interval for CPDP: T/I = 1-45