Have you ever looked at a magnified view of a snowflake? Very organized (yet rather spontaneous) structure that repeats in small ways that grow into a larger structure.
Crystalization is very definately "chemical" in nature. It has structure, it has reproducibility (from the small scale to the large.) Yet we attribute no magic behind it, no purpose, no goal, no "reader", no "intelligent designer."
DNA and other life forms are really just an ongoing crystalization process, if you will.