Card No: 11901       Created: 28/07/23    Last edition: 27/03/2026

Name: ERIONITE-K
Specification: [2], DF, ZL
Formula: Na0.13K2.63Mg0.76Ca1.57Al7.3Si28.6O72 · 28H2O
Symmetry Class: hexagonal
Space Group: P 6(3)/mmc
Unit Cell
Parameters:
a = 13.2708 | c = 15.0958
Number of Formula Unit: Z = 1Unit Cell Volume, Å3: Vc = 2302.40
Number of Atomic Position
per full Unit Cell
:
P/U = 186 Molar Volume, cm3/mol: Vm = 1386.82
Number of Reflexes used in
Structure Determination
:

NR = 1357
X-ray density, g/cm3: p = 2.04
R-factor: R = 0.0380MU, 1/cm: µ = 78.753
Wave Length for Calculated
Powder Diffraction Patterns
:
Cu=1.54056Mass attenuation coefficient,
cm2/g
:
µ/p = 38.537
Theta-Interval for CPDP: T/I = 1-45