Card No: 11904       Created: 24/07/23    Last edition: 03/04/2026

Name: FLUORPYROMORPHITE
Specification: [3], structure type - apatite
Formula: Pb5[PO4]3F
Symmetry Class: hexagonal
Space Group: P 6(3)/m
Unit Cell
Parameters:
a = 9.7790 | c = 7.2410
Number of Formula Unit: Z = 2Unit Cell Volume, Å3: Vc = 599.68
Number of Atomic Position
per full Unit Cell
:
P/U = 42 Molar Volume, cm3/mol: Vm = 180.60
Number of Reflexes used in
Structure Determination
:

NR = 144
X-ray density, g/cm3: p = 7.42
R-factor: R = 0.1764MU, 1/cm: µ = 1382.730
Wave Length for Calculated
Powder Diffraction Patterns
:
Cu=1.54056Mass attenuation coefficient,
cm2/g
:
µ/p = 186.399
Theta-Interval for CPDP: T/I = 1-45