It is best to observe this property in the soil profile rather than in the sample box because of the disturbance. This structureless condition is usually found in coarse-textured soils. Flat surfaces or faces are well defined. It usually suggests salty conditions. This type is characteristic of clayey, very slowly permeable soils.
Structure means the shape and arrangement of soil particles into cluster or aggregates.
Each aggregate has a particular shape or size and determines the type of soil structure.