Overview

Pearson symbol


Related Overviews

 

'Pearson symbol' can also refer to...

 

More Like This

Show all results sharing this subject:

  • Physics

GO

Show Summary Details

Quick Reference

A symbolic notation devised by W. B. Pearson for indicating the structure of a crystal. There are three parts:(1) A lower case letter denoting one of six crystal systems: a = anorthic (triclinic); m = monoclinic; o = orthorhombic; t = tetragonal; h = hexagonal or rhombohedral; c = cubic.(2) An upper-case letter denoting the lattice type: P = primitive; I = body-centred; F = face-centred (full); C = face-centred (side); R = rhombohedral.(3) A number giving the number of atoms in the unit cell. For example, sodium chloride has a cubic, face-centred structure with 8 atoms in the unit cell, so has Pearson symbol cF8. The first two letters of a Pearson symbol give the Bravais lattice.

(1) A lower case letter denoting one of six crystal systems: a = anorthic (triclinic); m = monoclinic; o = orthorhombic; t = tetragonal; h = hexagonal or rhombohedral; c = cubic.

(2) An upper-case letter denoting the lattice type: P = primitive; I = body-centred; F = face-centred (full); C = face-centred (side); R = rhombohedral.

(3) A number giving the number of atoms in the unit cell.

Subjects: Physics.


Reference entries

Users without a subscription are not able to see the full content. Please, subscribe or login to access all content.