Ped

An aggregate of soil particles that forms a distinct visible soil feature through natural processes (see also ‘Clod’). There are several types of soil ped, which might be grouped as follows (although different groupings can be found in soil science literature):
1. Blocky.
2. Platy (also called Laminar).
3. Column like (sub-divided in Prismatic and Columnar)
4. Granular (sub-divided into Granular and Crumb, often prefixed with Spheroidal).