The asteroids in the vicinity seem to be mostly Iron and some Thamium9, with occasional Nickel rocks and Aluminium crystals. All the world's rock have a bubblegum pink color to them, and is the inspiration for the name of the system and two of the worlds.
The system seems to have a good amount of exotic materials, and the fauna on the planets is interesting. Of particular note is the Mothy-winged Flamingos of Bubblegum III, and the 4 metre Killer Crabs of Brr!.
The ships on Brr! are very interesting and worth a look.
