Sand is a generally granular material composed of finely divided rock and mineral particles. It is also defined based on its size, being finer than gravel and coarser than silt. It is one of the essential types of building materials.
Sand is a generally granular material composed of finely divided rock and mineral particles. It is also defined based on its size, being finer than gravel and coarser than silt. It is one of the essential types of building materials.
