Card No: 9420       Created: 2/04/15    Last edition: 18/12/2019

Name: CONGOLITE
Specification: [2], structure type - boracite, syn
Formula: Fe3B7O13Cl
Symmetry Class: trigonal
Space Group: R 3c
Unit Cell
Parameters:
a = 8.6231 | c = 21.0503
Number of Formula Unit: Z = 6Unit Cell Volume, Å3: Vc = 1355.55
Number of Atomic Position
per full Unit Cell
:
P/U = 144 Molar Volume, cm3/mol: Vm = 136.08
Number of Reflexes used in
Structure Determination
:

-
X-ray density, g/cm3: p = 3.58
R-factor: -MU, 1/cm: µ = 136.157
Wave Length for Calculated
Powder Diffraction Patterns
:
Co=1.78892Mass attenuation coefficient,
cm2/g
:
µ/p = 38.079
Theta-Interval for CPDP: T/I = 1-45