Card No: 3051       Created: 30/11/1988    Last edition: 13/01/2009

Name: NARSARSUKITE
Specification: [1]
Formula: Na2(Ti,Fe)(O,OH)[Si4O10]
Symmetry Class: tetragonal
Space Group: I 4/m
Unit Cell
Parameters:
a = 10.7200 | c = 7.9900
Number of Formula Unit: Z = 4Unit Cell Volume, Å3: Vc = 918.20
Number of Atomic Position
per full Unit Cell
:
P/U = 72 Molar Volume, cm3/mol: Vm = 138.27
Number of Reflexes used in
Structure Determination
:

-
X-ray density, g/cm3: p = 2.78
R-factor: -MU, 1/cm: µ = 199.262
Wave Length for Calculated
Powder Diffraction Patterns
:
Co=1.78892Mass attenuation coefficient,
cm2/g
:
µ/p = 71.719
Theta-Interval for CPDP: T/I = 1-45