Formation of Soil

Hi, I am Roger Rock and I am the strongest rock of all. No human has been able to break me.
But wait, what is happening? I am seem to be getting smaller by the day because of this constant rain and sunshine.
The river has carried me away and the smaller rocks are now rubbing against me and breaking pieces from me.
Look at how fine i have become, I never imagined that I, roger rock would end up like this.
Well, i guess I am not meant to be 'Roger Rock' instead I should think of a new title. what about .......Simon soil.