Card No: 641       Created: 06/04/1990    Last edition: 20/08/2012

Name: BROMELLITE
Specification: [1], structure type - wurtzite 2H, at 298oK+0.0001 GPa
Formula: BeO
Symmetry Class: hexagonal
Space Group: P 6(3)mc
Unit Cell
Parameters:
a = 2.6750 | c = 4.3410
Number of Formula Unit: Z = 2Unit Cell Volume, Å3: Vc = 26.90
Number of Atomic Position
per full Unit Cell
:
P/U = 4 Molar Volume, cm3/mol: Vm = 8.10
Number of Reflexes used in
Structure Determination
:

-
X-ray density, g/cm3: p = 3.09
R-factor: R = 0.0150MU, 1/cm: µ = 24.375
Wave Length for Calculated
Powder Diffraction Patterns
:
Cu=1.54056Mass attenuation coefficient,
cm2/g
:
µ/p = 7.897
Theta-Interval for CPDP: T/I = 1-45