what is the chemical name of emeralds
Beryl (Be3Al2(Si6O18) is a relatively common mineral although it does contain the rare element beryllium. It is most well known however for its gem varieties: the pale green to blue aquamarine , the intense green emerald, the pale yellow to yellowish-orange heliodor and the pale pink to salmon colored morganite. Beryl also occurs as the colorless gem variety goshenite, and as the very rare red gem beryl variety bixbite.