Let's remember the title of the thread. I'm not really wanting to talk about the value of objects on the moon. Surely economics is wholly a human area of activity. Within that context what is intrinsically valuable?
In a Biblical context the whole point of the Garden of Eden story is that the "fruit" has no value of its own. It is the actions of the humans concerning it which give it any significance at all.
I think I am suggesting that we need to rediscover "real" value and base our economic transactions on that.