Didn't they originally call Terrazzos "granite?" I wonder if that has something to do with how he was labeled. He looks to be quite obviously of Keys origin, to me. Not saying Terrazzo, because that is a pattern- just whoever sent him may have just gone with that.
I wonder if you can find out more information- like was he collected? They might not want to share that info, but it would be really helpful, if he was, and if you register him.