Even though emeralds and rubies are very different colors, they both have the same secret ingredient in their atomic ...

Both rubies and emeralds are minerals, which is a type of rock with a consistent chemical composition and a highly ordered ...

One feature of compounds made with transition metals is their intense colour. There are many examples in nature, including ...

Each aluminum ion is surrounded by six oxygen ions. Emeralds are mainly made up of the mineral beryl, which is made from the elements beryllium, aluminum, silicon and oxygen. Beryl's crystal ...