I noticed there are enchantments in the game that are not listed in the guide. So I was wondering if anyone has located any piece of armor or accessory that has the Chameleon Enchantment on it.

No, I'm not sure that even exists any more... The closest thing I have seen is muffle, which makes even heavy armor silent.

I dunno if there is even a chameleon spell any more... Then again, I am a Nordic Warrior, and don't really know a whole lot about that magic rubbish...

If they threw chameleon back in, Skyrim would turn into another mess just like Oblivion w/ enchanted apparel.

I have yet to see any Chameleon enchantments, over 3 characters, I just thought they removed it due to the glitch in Oblivion/shivering isle when Chameleon>35% made your armor invisible while still drawing the naked upper chest for both male/female

More likely it was yanked due to 100% Chameleon essentially being god-mode, since they never reacted to anything you did, no matter how violent. Seriously; you could walk up to some dude and belt him in the face with a War Hammer, and neither he nor his buddies would give a damn.

Chameleon broke the game before. It's one of the few things that I'm glad they removed.