The sphalerite composition is favored at 298k by 13kJ/mol, but at 1296K the changeover to wurtzite happens.3 Amorphous or "plastic" sulfur is made by rapid cooling of molten sulfur—as an example, by pouring it into cold water. X-ray crystallography research display which the amorphous variety may have a helical construction https://holdenjqpkf.blog-gold.com/33917106/a-secret-weapon-for-infrared-zinc-sulfide