Beryllium and oxygen.
Emerald (precious stone) --> 翡翠 fei(3) cui(4) Emerald colour --> 翠绿 cui(4) lǜ(4)
Emerald has the chemical formula Be3Al2(SiO3)6; aquamarine is a blue variety of emerald.
Emeralds are natural elements that cannot be grown; like a diamond.
Emerald Gordon Wulf is 4'.
The green color of an emerald is caused by the elements chromium or, less frequently, vanadium. This is a trace element in the emerald and not a necessary component of its chemical structure.
Crystals are the result of a chemical reaction of multiple elements and/or compounds.
In Lavaridge
There are 4 elements in group-4.
I have a thory of elements. If your birth-stone is Ruby your element is fire. Sapphire Water. Emerald Nature. (I will do more next week. I do three every week)
You can get it by using an action replay, but Spiritomb cannot be in Emerald it has to be in Generation 4 or above.
There are 18 elements in period 4.