does all rock eventually break down to dirt given enough time?

Question

I was hiking today and there was a lot of dirt/sand and it got me thinking there’s all rock eventually break down to dirt given enough time? like if I took a pile of gravel and left it out long enough and came back in amount of years would it literally be a pile of dust at some point if so, how? And sorry one more question if you put that same gravel in a secure covered area where the weather or really anything couldn’t get to it in 1 million years. Would it still look exactly like gravel?

In: Planetary Science

Answer 1

Or sand, or other stuff. But soil? Yes.