When silicon dioxide is crystallized, it is crystal; Agate is produced after silica is gelatinized and dehydrated; Silica hydrated colloids become opal after solidification; When the grain size of silicon dioxide is smaller than a few microns, it constitutes chalcedony, flint, and secondary quartzite. Mineral resources with very stable physical and chemical properties. The crystals belong to oxide minerals of the tripartite crystal system, namely low-temperature quartz( α– Quartz) is one of the most widely distributed minerals in the quartz group. The generalized quartz also includes high-temperature quartz( β– Quartz). If you are looking for high quality, high purity and cost-effective zinc sulfide, or if you require the latest price of zinc sulfide, please feel free to email contact mis-asia.