The starite is above you and you can't dig to it. You will either have to guide it to Maxwell or get Maxwell out of the small space somehow.
- Create a MICROSCOPIC HELICOPTER and have Maxwell ride in it to the Starite.
- Create a TINY SPACESHIP and have Maxwell ride to the starite in it.
- Create a MINISCULE UFO and have Maxwell ride to the starite in it. (The game has that misspelling built-in. It's supposed to be MINUSCULE.)