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Soâ¦how do beryl and chromium and vanadium get together to form emerald? How emeralds are formed. Plate tectonics shifts rock formations all over the place. Well, thatâs too much of an oversimplification, but it is the reason why ocean crust sometimes ends up scrunched together with continental rock. Part of the detailed explanation of plate tectonics.
How long does it take these gemstones to form? Any good info on... show more I recently went to spend a few days at a ruby mine in the NC mountains and am now intrigued by all gemstones. I can't seem to grasp the concept that something so beautiful forms in plain dirt. I always believed these stones were embedded in rocks.