Can anyone ID this coral???

Picture doesnt do it justice. Its mostly brown in color with some teal green highlights. Very beautiful when open. Its a stony coral encrusting a rock. A piece came off that I saved and it does have a stony skeloton underneath it. It will also take small meaty shrimp. I noticed when feeding the fish occasionaly a small mysis will drift onto it, it will wrap its tentacles around it and eventually swallow it. Anyone have a clue what this is?
 
Thanks guys! I think the vote is unanymous... I also had a picture of it on my facebook page and friend commented also saying the same thing. Its one of my favorite things about reefs. You never know what your gonna end up with in your tank!
 
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