Silicon dioxide is an inorganic compound with the chemical formula of SiO2. The silicon and oxygen atoms are arranged long-range to form crystalline silicon dioxide, and the short-range or long-range disordered arrangement forms amorphous silicon dioxide.

Silicon dioxide is an inorganic compound with the chemical formula of SiO2. The silicon and oxygen atoms are arranged long-range to form crystalline silicon dioxide, and the short-range or long-range disordered arrangement forms amorphous silicon dioxide.

Silicon dioxide is an inorganic compound with the chemical formula of SiO2. The silicon and oxygen atoms are arranged long-range to form crystalline silicon dioxide, and the short-range or long-range disordered arrangement forms amorphous silicon dioxide.

Silicon dioxide is an inorganic compound with the chemical formula of SiO2. The silicon and oxygen atoms are arranged long-range to form crystalline silicon dioxide, and the short-range or long-range disordered arrangement forms amorphous silicon dioxide.

Silicon dioxide is an inorganic compound with the chemical formula of SiO2. The silicon and oxygen atoms are arranged long-range to form crystalline silicon dioxide, and the short-range or long-range disordered arrangement forms amorphous silicon dioxide.

Gray metallic crystalline solid, hard, hardness second only to diamond, weak magnetic.

Gray metallic crystalline solid, hard, hardness second only to diamond, weak magnetic.

Gray metallic crystalline solid, hard, hardness second only to diamond, weak magnetic.

Gray metallic crystalline solid, hard, hardness second only to diamond, weak magnetic.

Gray metallic crystalline solid, hard, hardness second only to diamond, weak magnetic.