Mineral is a shapeshifter who is friends with Golden sapphire.
Mineral has the power of absolute shape shifting he can even use others abilities. Such as if he wanted he could use Lapis Lazuli's hydrokysisis but only when she is nearby. He can also use other people's weapons but the same limitations apply.
Mineral is of an average hight and he wears all greyThanks to salty pearl for this image