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Compaction of coal in to a denser form of carbon is quite different from the crystallization of carbon out of a liquid medium (magma).
by ErikRogneby 15y ago
Compaction of coal in to a denser form of carbon is quite different from the crystallization of carbon out of a liquid medium (magma).
- sliverstorm 15y agoThat's a rather pedantic distinction. I understand coal is not the source of diamonds, but the analogy gets the point across to the general public, and covers most of the key elements.