Quartz is widely distributed in nature, and its formation causes are varied. At present, the main types of quartz mineral resources include natural crystal, vein quartz, granite pegmatite quartz, quartzite, quartz sandstone, powder quartz and quartz conglomerate. Among these types, the types of depo...

Bauxite is an important industrial raw material, mainly used to produce aluminum metal, which is widely used in aerospace, automobile manufacturing, building materials, light industry and other fields. Bauxite can also be used to produce aluminate, refractory materials, wastewater treatment agents a...

The main component of pebbles is silicon dioxide (SiO2), followed by a small amount of iron oxide and trace amounts of manganese, copper, aluminum, magnesium and other elements and compounds. These elements and compounds give pebbles different colors, such as red, blue, purple and so on.   Due...