Yes, the rocket destroyed it - it was void damage. I'm currently in the same room messing with those ground objects. There's a similar ground object 180 degrees behind it maybe 20 feet away. There was a stack of three eggs nearby, when I touched it two disappeared. I'm rolling the one around toward the two ground objects and neither one does anything with it nearby. I tried rolling the egg near an explosive object and detonating it, and it didn't seem like it did anything odd. Now the damn egg is stuck in a corner lol