Hello. I saw that they were call rupy (or ruby) in LOZ. I'm a french person, and in french, it means ''rubis''. As for rupees, they are ''roupies'' in french.
I've recently played LOZ and I noticed that in my version of LOZ (I have the one in the Collector's Edition on the Gamecube) , it isn't written ''ruby'', but really ''rupee''. That made me think that the picture I saw previously may have been a fake one.