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.
Windsor is a town in Hartford County, Connecticut, United States, and was the first English settlement in the state. It lies on the northern border of Connecticut's capital, Hartford. The population of Windsor was 29,044 at the 2010 census. Poquonock is a northern area of Windsor that has its own zip code (06064) for post-office box purposes. Other unincorporated areas in Windsor include Rainbow and Hayden Station in the north, and Wilson and Deerfield in the south.