From Wikipedia, the free encyclopedia. The chemical compound silicon dioxide, also known as silica, is the oxide of silicon, chemical formula SiO2.It is found in nature in several forms, including quartz and opal. In fact, silica has 17 crystalline forms.he chemical compound silicon dioxide, also known as silica, is the oxide of silicon, chemical formula SiO2.
Windsor is home to 217,188 people, according to the 2016 census. Windsor's population has grown by three per cent in the past five years, but the city still fell behind the national growth rate, according to data collected during the 2016 census.
Buckhorn Police Car. The Town of Windsor, located in southeast Virginia, with a population of 2600 has been called âthe hidden jewel of Western Tidewater.â With its friendly, small town atmosphere, excellent schools, and location near larger metropolitan areas, Windsor offers the best of all worlds.