Quartz

Quartz

　　Quartz

　　Quartz is a mineral resource with very stable physical and chemical properties. Its crystals belong to the trigonal crystal system as an oxide mineral, specifically low-temperature quartz (α-quartz), which is the most widely distributed species within the quartz group of minerals. In a broader sense, quartz also includes high-temperature quartz (β-quartz). Quartz blocks are also known as silica stone,

　　primarily serving as raw material for producing quartz sand (also called silica sand),

　　as well as being used in the production of quartz refractory materials and ferrosilicon.