Card No: 737       Created: 12/03/1992    Last edition: 13/01/2009

Name: CANCRINITE
Specification: [2], Ge-analogue, DF, ZL
Formula: Na8[Al6Ge6O24]Ge(OH)6 · 2H2O
Symmetry Class: hexagonal
Space Group: P 6(3)
Unit Cell
Parameters:
a = 13.0230 | c = 5.2040
Number of Formula Unit: Z = 1Unit Cell Volume, Å3: Vc = 764.35
Number of Atomic Position
per full Unit Cell
:
P/U = 64 Molar Volume, cm3/mol: Vm = 460.39
Number of Reflexes used in
Structure Determination
:

-
X-ray density, g/cm3: p = 2.99
R-factor: R = 0.0550MU, 1/cm: µ = 125.568
Wave Length for Calculated
Powder Diffraction Patterns
:
Cu=1.54056Mass attenuation coefficient,
cm2/g
:
µ/p = 42.030
Theta-Interval for CPDP: T/I = 1-45