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@ The Conversation U.S.
2025-02-13 18:31:02Rubies and emeralds owe their vibrant colors to the same element: chromium. The crystal structure determines whether it appears red or green. A chemist explains: https://buff.ly/412ONVi https://assets.newsie.social/media_attachments/files/113/998/001/665/887/571/original/7a9066aecacaa99c.jpeg