The Conversation U.S. on Nostr: Rubies and emeralds owe their vibrant colors to the same element: chromium. The ...
Rubies 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 
Published at
2025-02-13 18:31:02Event JSON
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