Card No: 1424       Created: 16/01/1992    Last edition: 13/01/2009

Name: FAIRCHILDITE
Specification: [1], syn, DF
Formula: K2Ca[CO3]2
Symmetry Class: hexagonal
Space Group: P 6(3)/mmc
Unit Cell
Parameters:
a = 5.2940 | c = 13.3550
Number of Formula Unit: Z = 2Unit Cell Volume, Å3: Vc = 324.15
Number of Atomic Position
per full Unit Cell
:
P/U = 40 Molar Volume, cm3/mol: Vm = 97.62
Number of Reflexes used in
Structure Determination
:

-
X-ray density, g/cm3: p = 2.93
R-factor: R = 0.0460MU, 1/cm: µ = 199.124
Wave Length for Calculated
Powder Diffraction Patterns
:
Cu=1.54056Mass attenuation coefficient,
cm2/g
:
µ/p = 67.908
Theta-Interval for CPDP: T/I = 1-45