"... Many types or shapes of structure occur in soils. Other soils have no true structure and are called structureless. Certain deposits, for example sands in a sand dune, are called single grain because there is little to no attraction between sand grains. On the other textural extreme, some clay soils occur as large cohesive masses and are termed massive in structure. Many soils, however, will exhibit definite and repeatable shapes that we can describe with four general categories."
Now that I know that clay's texture(platelets) has nothing to do with water infiltration, percolation, or drainage,,, I wonder what does...