Silica is one of most abundant elements on planet, and can be found in a variety of natural and synthetic materials. It is essential to life on Earth, and it is used in a variety of industries, from electronics and automobiles to pharmaceuticals.

Silica can be found in various forms. The most common form on Earth is silicon dioxide (SiO2), which is also one of most abundant minerals. It is a major component of many igneous rocks, such as granite, sandstone, and slate. In soil, it is most abundant component, constituting about 25% of soil by weight.

Silica is also found in its crystalline form, in quartz, and in many other minerals such as mica, shale, and talc. Quartz is most common form of silica, and it is also most abundant mineral on Earth. It is found in every type of rock, including sedimentary, igneous, and metamorphic. Quartz is also found in many sedimentary rocks, such as limestone, sandstone, and shale, as well as in some parts of ocean.

Silica is also found in a variety of synthetic materials. It is used as a filler material in many products, including plastics, paints, and rubber. It is also used in filter systems and in manufacture of glass and ceramics.

Silicon is a major component of Earth's crust and is also found in many other materials. It is a major component of all life – it can be found in plants, animals, and humans. In human body, silicon is essential for calcium absorption and bone growth.

Silica is also essential for a variety of industries. It is used to make a variety of products, from glass and computer chips to dental fillings and paints. It is also used in manufacture of electronics, such as cell phones and computers.

Silica is vital for many applications. It is found in a variety of forms and can be found in many different locations. It is essential for life, and is also used in a variety of industries. It is a major component of Earth's crust, and is found in a variety of natural and synthetic materials.