Card No: 243       Created: 06/12/1988    Last edition: 13/01/2009

Name: ANORTHITE
Specification: [1], Eu-analogue
Formula: Eu0.92Al1.76Si2.24O8
Symmetry Class: monoclinic-beta
Space Group: C 2/m
Unit Cell
Parameters:
a = 8.3730 | b = 12.9590 | c = 7.1240 | beta = 115.5100
Number of Formula Unit: Z = 4Unit Cell Volume, Å3: Vc = 697.64
Number of Atomic Position
per full Unit Cell
:
P/U = 52 Molar Volume, cm3/mol: Vm = 105.05
Number of Reflexes used in
Structure Determination
:

-
X-ray density, g/cm3: p = 3.60
R-factor: -MU, 1/cm: µ = 628.332
Wave Length for Calculated
Powder Diffraction Patterns
:
Cu=1.54056Mass attenuation coefficient,
cm2/g
:
µ/p = 174.556
Theta-Interval for CPDP: T/I = 1-45