Talk:When It Rains/@comment-26756991-20151001222133/@comment-26225039-20151001224549

quartz is silicon dioxide (SiO2), also known as silica, and make up most of the avarage sand, so it makes sense that the Earth is used to make quartz/silica (all colours and types, like rose quartzes, amethysts, jaspers, etc) since its the most abundant mineral on its surface.