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Why are rubies red and emeralds green? Their colors come from the same metal in their atomic structure
Rubies are mainly made up of the mineral corundum, which is composed of the ... chromium – create the red color of a ruby and green color of an emerald? Rubies and emeralds have the colors ...
National Geographic news7y
Minerals and Gems
Ruby in the RoughIts green surroundings showcase a ruby from Tanzania in its unpolished beauty. Rubies, valued as precious gems, are the mineral corundum in its red form. Perhaps the country best ...
Atlanta Journal-Constitution27d
Why are rubies red? Chemistry.
Rubies are mainly made up of the mineral corundum, which is composed of the ... chromium — create the red color of a ruby and green color of an emerald? Rubies and emeralds have the colors ...