Nice! I don't think I could bring myself to open the bag, but if I did, I think I'd lift the paper label up as far as I could and use a razor blade to cut a careful small slit just big enough to pop out the marble under the paper so you can't see it without lifting the label.
I don't know what the tan and red NLR is called, burnt zebra sounds good to me. Chuck G. (The other Chuck... the Pelt guru) knows, I'm sure!