Card No: 11956       Created: 11/04/23    Last edition: 27/03/2026

Name: FLUORAPATITE
Specification: [16], structure type - apatite, at 19.4 GPa, DF
Formula: Ca5[PO4]3F
Symmetry Class: hexagonal
Space Group: P 6(3)/m
Unit Cell
Parameters:
a = 8.8736 | c = 6.6016
Number of Formula Unit: Z = 2Unit Cell Volume, Å3: Vc = 450.17
Number of Atomic Position
per full Unit Cell
:
P/U = 44 Molar Volume, cm3/mol: Vm = 135.58
Number of Reflexes used in
Structure Determination
:

NR = 429
X-ray density, g/cm3: p = 3.72
R-factor: R = 0.0391MU, 1/cm: µ = 308.787
Wave Length for Calculated
Powder Diffraction Patterns
:
Cu=1.54056Mass attenuation coefficient,
cm2/g
:
µ/p = 83.024
Theta-Interval for CPDP: T/I = 1-45