Board Thread:General Discussion/@comment-15374346-20130929201816/@comment-3146930-20130929210327

Magic in the PJ world mostly comes down to the use of Mist, at least for demigods. However it relies more on magical items, Celestial Bronze, Imperial Gold, and Stygian Iron are magical metals, but they aren't really magic. The Mist on the other hand is just a giant spell cast by Hecate to conceal the world of gods and monsters. There are other forms of magic, as Hazel's mom found a way to summon Pluto, but they aren't popular and are normally only used by children of Hecate.

Alabaster however does use an Imperial Gold sword, but even Camp Jupiter knows about Celestial Bronze and claim it is just rare so they don't use it. Camp Half-Blood most likely has the same policy, with Imperial Gold being rare to them so they prefer to use Celestial Bronze.