Note 4 — Chapter XVIII · SILICON AND THE OTHER ELEMENTS OF THE FOURTH GROUP
George Kamensky translation
A similar form of silicon is obtained by fusing SiO2 with magnesium, when an alloy of Si and Mg is also formed (Gattermann). Warren (1888) by heating magnesium in a stream of SiF4 obtained silicon and its alloy with magnesium. Winkler (1890) found that Mg5Si3 and Mg2Si are formed when SiO2 and Mg are heated together at lower temperatures, whilst at a high temperature Si only is formed.