Antoine Alexandre Brutus Bussy [1794-1882]
a French chemist who primarily studied pharmaceuticals.
In 1831 he published the 'Memoire sur le Radical metallique de la Magnesie' where he described a method of preparing magnesium by heating magnesium chloride and potassium in a glass tube. When the potassium chloride was washed out, small globules of magnesium remained.
Bussy and Friedrich Wohler are each credited with independently isolating the element beryllium in August 1828 by reacting potassium and beryllium chloride.