That which is spiritual, has suddenly claimed a certain cachet. If you are spiritual, you are non-materialistic and don't put value in things that are of this world. Rocks however, in this sense can be considered immaterial. Usually, they have no apparent value except what are considered to be collectibles. Do rocks have mortality? Questions like these too often fall into the realm of the philosophical.
The surface of many beach and river rocks will usually have a life form of blue green algae, but generally speaking, the only rocks that may have contained life are now fossils. Crystals grow by accumulation. A living cell grows by assimilation. Conciousness is certainly not necessary for a living being within our sense of living, so therfore the lack of consciousness in a rock is not evidence that it is not living.But living like a tree or a plant? Hmmm... I think not.
A rock is part of a process that "digests" material, uses energy to reform the basic building blocks time and again.Thus, the atoms in a rock are just as "alive" as the atoms in our body. In its basic sense, we are just a more complex reformation of atoms than the rock, still within the same overall lifecycles of those atoms.
Rocks are samples of objects that are time tested. Like what is considered art, it may have no inherant value in the grand scheme of things, other than the value that has been assigned to it, and ultimately is a product of many things that are often time-tested and remain mysterious.How long does it take for a rock to form or disintegrate? How long does an art piece last?