Why are rubies red and emeralds green? Their colors come from the same metal in their atomic structure

The colors of rubies and emeralds are so striking that they define shades of red and green – ruby red and emerald green. But have you ever wondered how they get those colors?

I am an inorganic chemist^[1]. Researchers in my field work to understand the chemistry of all the elements that make up the periodic table. Many inorganic chemists...

Authors: Staff

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