Card No: 7467       Created: 23/01/2009    Last edition: 24/05/2015

Name: IKRANITE
Specification: [1], structure type - eudialyte, DF
Formula: [Na,H3O]15(Ca,Mn,REE)6Fe3+2Zr3.4Si24.3O66(O,OH)6Cl · 2H2O
Symmetry Class: trigonal
Space Group: R 3m
Unit Cell
Parameters:
a = 14.1670 | c = 30.0810
Number of Formula Unit: Z = 3Unit Cell Volume, Å3: Vc = 5228.52
Number of Atomic Position
per full Unit Cell
:
P/U = 486 Molar Volume, cm3/mol: Vm = 1049.78
Number of Reflexes used in
Structure Determination
:

-
X-ray density, g/cm3: p = 2.90
R-factor: -MU, 1/cm: µ = 261.883
Wave Length for Calculated
Powder Diffraction Patterns
:
Co=1.78892Mass attenuation coefficient,
cm2/g
:
µ/p = 90.339
Theta-Interval for CPDP: T/I = 1-45