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Why are rubies red and emeralds green? Their colors come from the same metal in their atomic structureCrystal field theory makes predictions about ... But how can one element—chromium—create the red color of a ruby and green color of an emerald? Rubies and emeralds have the colors they do ...
Wicked' co-stars Ariana Grande and Cynthia Erivo took the stage at the Oscars 2025 to pay tribute to 'The Wizard of Oz' ...
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