Card No: 744       Created: 15/06/1994    Last edition: 13/01/2009

Name: CANCRINITE
Specification: [9], Ge-analogue, DF, ZL
Formula: Na8Al6Ge6O24CO3 · 2[H2O]
Symmetry Class: trigonal
Space Group: P 31c
Unit Cell
Parameters:
a = 12.9130 | c = 10.4930
Number of Formula Unit: Z = 2Unit Cell Volume, Å3: Vc = 1515.25
Number of Atomic Position
per full Unit Cell
:
P/U = 108 Molar Volume, cm3/mol: Vm = 456.35
Number of Reflexes used in
Structure Determination
:

NR = 1255
X-ray density, g/cm3: p = 2.80
R-factor: R = 0.0650MU, 1/cm: µ = 113.880
Wave Length for Calculated
Powder Diffraction Patterns
:
Cu=1.54056Mass attenuation coefficient,
cm2/g
:
µ/p = 40.625
Theta-Interval for CPDP: T/I = 1-45