Card No: 796       Created: 28/02/1989    Last edition: 13/01/2009

Name: CELSIAN
Specification: [1]
Formula: BaAl2Si2O8
Symmetry Class: monoclinic-beta
Space Group: I 2/c
Unit Cell
Parameters:
a = 8.6270 | b = 13.0450 | c = 14.4080 | beta = 115.2200
Number of Formula Unit: Z = 8Unit Cell Volume, Å3: Vc = 1466.90
Number of Atomic Position
per full Unit Cell
:
P/U = 104 Molar Volume, cm3/mol: Vm = 110.45
Number of Reflexes used in
Structure Determination
:

-
X-ray density, g/cm3: p = 3.40
R-factor: -MU, 1/cm: µ = 478.190
Wave Length for Calculated
Powder Diffraction Patterns
:
Cu=1.54056Mass attenuation coefficient,
cm2/g
:
µ/p = 140.680
Theta-Interval for CPDP: T/I = 1-45