About 735,000 results
Open links in new tab
  1. Silicon dioxide - Wikipedia

    Silicon dioxide, also known as silica, is an oxide of silicon with the chemical formula SiO2, commonly found in nature as quartz. [5][6] In many parts of the world, silica is the major …

  2. What is Silica? Benefits, Dosage, Side-effects | Holland & Barrett

    Mar 27, 2025 · This lesser known natural compound can support your immune system. Discover exactly what silica is, how much you need and more health benefits it provides.

  3. 7 Foods High in Silica - WebMD

    Sep 15, 2024 · One such material is silica, or silicon dioxide, which is the most common component of sand. Silica is also found naturally in some foods, and it is added to many food …

  4. Silica | Definition & Facts | Britannica

    Nov 18, 2025 · The mass of Earth’s crust is 59 percent silica, the main constituent of more than 95 percent of the known rocks. Silica has three main crystalline varieties: quartz (by far the …

  5. What Is Silica? What is Silica Used for? Silica Composition

    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 …

  6. Silica | Toxic Substances | Toxic Substance Portal | ATSDR

    Summary: Silica is another name for the chemical compound composed of silicon and oxygen with the chemical formula SiO2, or silicon dioxide. There are many forms of silica. All silica …

  7. Silica, Crystalline - Health Effects | Occupational Safety and Health ...

    Breathing in very small ("respirable") crystalline silica particles, causes multiple diseases, including silicosis, an incurable lung disease that leads to disability and death. Respirable …

  8. What is Silica (SiO₂) + Industrial Applications

    Silica, one of the most abundant minerals in the Earth’s crust, is chemically known as Silicon Dioxide (SiO₂) . This hard, non-metallic compound, ranging in color from colorless to dark …

  9. Pax Silica Summit - United States Department of State

    4 days ago · Pax Silica is a U.S.-led strategic initiative to build a secure, prosperous, and innovation driven silicon supply chain—from critical minerals and energy inputs to advanced …

  10. What Is Silica?

    What is silica? Silica may just be one of the most overlooked minerals in terms of health benefits. Silica is most commonly found in nature as sand or quartz. In the human body, this chemical …