One of my players mentioned that magic weapons with an enhancement bonus of a certain level qualify as "special materials" for the purpose of bypassing material-specific damage reduction. I am having difficulty finding this chart. If such a rule/chart exists, could someone please provide me with a book and page number, as I am unaware of said rule.
Page 562, core rulebook.
http://paizo.com/pathfinderRPG/prd/glossary.html
Just Ctrl+F and look up Overcoming Damage Reduction.
Consult ye olde Core Rulebook, pages 561 and 562, in the section known as the Appendices, the heading is Damage Reduction. First column, page 562.
Thanks folks. I couldn't find it for the life of me.