Card No: 3211       Created: 18/05/1993    Last edition: 13/01/2009

Name: OFFRETITE
Specification: [2], DF, ZL
Formula: K1.1Ca1.1Mg0.7[Al5.2Si12.8O36] · 15.2H2O
Symmetry Class: hexagonal
Space Group: P 6(-)m2
Unit Cell
Parameters:
a = 13.2910 | c = 7.5820
Number of Formula Unit: Z = 1Unit Cell Volume, Å3: Vc = 1159.92
Number of Atomic Position
per full Unit Cell
:
P/U = 62 Molar Volume, cm3/mol: Vm = 698.67
Number of Reflexes used in
Structure Determination
:

-
X-ray density, g/cm3: p = 1.74
R-factor: R = 0.0960MU, 1/cm: µ = 71.750
Wave Length for Calculated
Powder Diffraction Patterns
:
Cu=1.54056Mass attenuation coefficient,
cm2/g
:
µ/p = 41.290
Theta-Interval for CPDP: T/I = 1-45