Possessible and non-possessible nouns

        Hi,

        As I told before, I'm learning Tupi.
        I found out an interesting feature in it. It has possessible and
non-possessible nouns. Explaining:
        Possessible nouns are the things or people "which make part of a
whole, or are members of a relation system."
        Non-possessible nouns are mostly the elements of nature, or
better, what is not seen as making part of a whole or who isn't member
of a relation system.
        So:
        Xe p=f3 =3d my hand
        P=f3 =3d hand (Wrong, because there's no hand which doesn't make
                   part of a body)
        it=e1 =3d stone
        xe it=e1 =3d my stone (Wrong, because it's an element of nature; but
                   it is allowed if it is in the every-day of the person
                   -- like an amulet, a stone for making axes, etc.)

        Are there other languages that have this feature? Any conlang?

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