Rubies and emeralds get their colours from a common metal
Both rubies and emeralds are minerals, which is a type of rock with a consistent chemical composition and a highly ordered structure at the atomic level.
The Conversation on MSN14d
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 ...
Royal Central4d
A royal rarity – an emerald engagement ring
It’s rare to see a royal engagement ring featuring an emerald. The striking stone features in very few of these most romantic ...
Opinion
bangaloremirror.indiatimes14dOpinion
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 gemstones and paint pigments. Even the colour of blood comes from the protein ...