What material is glass made of and what ingredients does it contain?

China glass is rich in siliceous raw material resources, mainly including quartzite for glass, quartz sand and pulse quartz. There are 26 provinces (regions) 189 mining areas with a total reserve of 3.8 billion tons. In terms of regional distribution, Qinghai is the largest quartzite for glass, accounting for 42.4% of the total reserves in China. Hainan has the most quartz sand; The first is timely sandstone for glass. The main mining areas are Datong in Qinghai, Zhuang Lei in Luanxian County, Hebei Province, Ganzuka in Inner Mongolia, Benxi in Liaoning Province, Mianchi in Henan Province, Dongshan in Fujian Province, Beihai in Guangxi and Wenchang in Hainan Province. According to the genetic types of the deposits, they are mainly sedimentary metamorphic quartzite, sedimentary chronotropic sandstone and marine sedimentary quartz sand, and the hydrothermal chronotropic pulse is of little significance. Glass siliceous raw materials were formed from Archean to Cenozoic.