Card No: 9845       Created: 21/06/16    Last edition: 25/06/2018

Name: GILLESPITE
Specification: [9], structure type - gillespite, at 1 bar
Formula: BaFeSi4O10
Symmetry Class: tetragonal
Space Group: *P 4/ncc
Unit Cell
Parameters:
a = 7.5160 | c = 16.0759
Number of Formula Unit: Z = 4Unit Cell Volume, Å3: Vc = 908.14
Number of Atomic Position
per full Unit Cell
:
P/U = 64 Molar Volume, cm3/mol: Vm = 136.75
Number of Reflexes used in
Structure Determination
:

-
X-ray density, g/cm3: p = 3.40
R-factor: -MU, 1/cm: µ = 583.955
Wave Length for Calculated
Powder Diffraction Patterns
:
Co=1.78892Mass attenuation coefficient,
cm2/g
:
µ/p = 171.564
Theta-Interval for CPDP: T/I = 1-45