These aren't even real asteroids. They're just small rocks that got lost in the vastness of space. Like the in-laws of the solar system.
Terrestrial Asteroids: Because Who Needs Atmospheres Anyway? Gas Giant Asteroids: The Unrefined Cousins of the Gas Giants Ice Asteroids: Because Frozen is a State of Mind Dwarf Planetary Ice Asteroids: The Chiller of the Bunch