What is Silica ? Silica , scientifically known as silicon dioxide (SiO2), is a naturally occurring compound found in a wide range of minerals. It is a primary component of sand, quartz, and other minerals. Silica is abundant in the Earth’s crust, making it one of the most prevalent compounds on the planet. Its chemical structure is simple yet versatile, consisting of silicon and oxygen atoms bonded together. The substance is essential in various industries due to its properties, including ... SILICA India's best coaching centre for NID , NIFT, NATA, UCEED and CEED, provides Coaching and Study Material for Design, Fashion and Architecture Entrance Exams. SILICA has 25 centres in Mumbai, Pune, Delhi, Ahmedabad, Bangalore, Indore, Nagpur, Kanpur, Lucknow, Nashik & Aurangabad. Take this 5-question NID test to check your prep. Download admission brochure for coaching programs 2026/2027 Get Guidance & Study Material for NIFT Situation Test Download NID 2025 + 20 more solved past papers. Click here. Silicon dioxide, also known as silica , is an oxide of silicon with the chemical formula SiO2, commonly found in nature as quartz. It has various forms, properties, and applications in different fields, such as glass, microelectronics, and food industry.