Full Idea
A statue is constituted by the marble that makes it up. It is plausible to say that constitution is not the same as identity - since identity is symmetrical and identity is not - but nonetheless constitution is a supervenience relation.
Gist of Idea
Constitution (as in a statue constituted by its marble) is supervenience without identity
Source
Tim Crane (Elements of Mind [2001], 2.16)
Book Reference
Crane,Tim: 'Elements of Mind' [OUP 2001], p.58
A Reaction
So what makes it a statue, as opposed to a piece of marble? It may well be an abstraction which only exists relative to observers.