What can a shape of the clastic rocks particles tell you about its rounded shape?

The shape of clastic rock particles can indicate the transport history of the sediment. Rounded particles suggest prolonged transport by water or wind, where abrasion and collisions have worn down sharp edges, leading to smoother shapes. Conversely, angular particles indicate that they have been recently broken from their source and have undergone little transport. Thus, the degree of rounding can provide insights into the sediment's journey and the energy of the environment in which it was deposited.