Crystal Armor

[Taluron]

There are rules for leaf and wooden armor in the Dragon mag which focused on Elves. Between #280-290. Not sure of the exact issue.

 

[Chun-tzu]

There's Crystal Armor in the Book of Hallowed Might. It absorbs ray attacks, which can then be used like a Rod of Absorption to cast any number of spells equal to the number of spell levels stored in the armor (but it won't absorb more ray attacks until it's empty). It's a +3 enchantment.