Pedality is the extent that the soil material is organised into peds.
[refer to soil profile structure at right, and Ruawaro picture]
Some soils or soil horizons are not composed of peds or have less than 15 % peds. This material is described as apedal. Examples of apedal material are:
Material having no partings at spacings of less than 200 mm such as some clayey or silty material.
More than 85 % of discrete particles such as sand or coarse gravel.
More than 85 % of the material is very fine or finer (< 6 mm) aggregates.