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It is one of the most abundant compounds on Earth, found in various forms such as quartz, sand, and rock. Silicon dioxide has numerous applications in various industries, making it a vital component of modern technology. This Wikipedia page provides an extensive overview of silicon dioxide, covering its physical and chemical properties, occurrence in nature, and various synthetic methods. It delves into the crystal structure of silicon dioxide and its different polymorphs, explaining how variations in these structures give rise to different types of silica materials. The page also explores the wide range of applications of silicon dioxide. It discusses its use as an additive in food and cosmetics, where it acts as an anti-caking or thickening agent. Silicon dioxide is also employed in the production of glass, ceramics, and cement due to its high melting point and hardness. Moreover, the page highlights the important role of silicon dioxide in semiconductor technology. It explains how silicon dioxide is used as a dielectric material, isolating different components of microchips and allowing precise control of electrical currents. It also touches upon the use of silicon dioxide as a precursor for the growth of silicon crystals, which are extensively utilized in the production of computer chips. Furthermore, the Wikipedia page delves into the health effects of silicon dioxide. It provides information on the different forms of silica and their potential risks, such as inhalation of crystalline silica dust leading to respiratory issues. The page also includes safety regulations and standards related to exposure to silica dust. Overall, this Wikipedia page covers the various facets of silicon dioxide, including its properties, applications, and potential health risks. It serves as a valuable resource for those seeking comprehensive information on this important compound.