Beryllium and oxygen.
An emerald is a gemstone.
The green color of an emerald gem is due to trace amounts of chromium in the crystal structure. This impurity is responsible for absorbing certain wavelengths of light and reflecting green light, giving emeralds their distinctive color.
Emerald.
The emerald.
emerald
an emerald is a gem, it is sometme called beryl, it is 99% green
These mean the same thing. There is no difference.
emerald
yes a green one too!
diamond or emerald
diamond,amethyst,garnet,emerald
The theme is green in the Emerald city scene because an emerald gem is green.