There seem to be a lot if you count the really tiny ones: https://kottke.org/21/05/the-micrometeorites-all-around-us https://kottke.org/21/05/the-micrometeorite

There seem to be a lot if you count the really tiny ones: https://kottke.org/21/05/the-micrometeorites-all-around-us https://kottke.org/21/05/the-micrometeorites-all-around-us