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 ...
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After diamonds, scientists create qubit centers in gemstone spinel
Scientists introduced atomic defects in spinel using cerium, and voilà! The gemstone became a solid qubit system.
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Why are rubies red, emeralds green?
One feature of compounds made with transition metals is their intense colour. There are many examples in nature, including ...