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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.
A fake emerald is any stone that has a different chemical structure from that of a real emerald. Fakes can be made of a variety of materials, both synthetic and natural. Sometimes, cheaper natural gemstones such as peridot or garnet are sold as emeralds. Colored glass can also be used as an emerald imitation.