Card No: 274       Created: 16/02/1993    Last edition: 23/03/2012

Name: APATITE
Specification: [8], structure type - apatite, Sr
Formula: [Ca9.53Sr0.4Na0.09Ce0.06][PO4]3F2.18
Symmetry Class: hexagonal
Space Group: P 6(3)/m
Unit Cell
Parameters:
a = 9.3802 | c = 6.9011
Number of Formula Unit: Z = 2Unit Cell Volume, Å3: Vc = 525.86
Number of Atomic Position
per full Unit Cell
:
P/U = 42 Molar Volume, cm3/mol: Vm = 158.37
Number of Reflexes used in
Structure Determination
:

NR = 1740
X-ray density, g/cm3: p = 3.28
R-factor: R = 0.0150MU, 1/cm: µ = 273.238
Wave Length for Calculated
Powder Diffraction Patterns
:
Cu=1.54056Mass attenuation coefficient,
cm2/g
:
µ/p = 83.336
Theta-Interval for CPDP: T/I = 1-45