Silica is silicon dioxide, a compound of silicon which is found in sand, quartz, and flint, and which is used to make glass. a chemical compound that exists naturally as sand, quartz, and flint, used in making glass (silex )
any material with the composition SiO2 Often refers to a Jello-like sub-stance with that composition which can act as a rock cement or solidify by itself as chert, flint, or jasper
Silicon dioxide (SiO2) Note 1: Silica may occur in crystalline or amorphous form, and occurs naturally in impure forms such as quartz and sand Note 2: Silica is the basic material of which the most common communication-grade optical fibers are presently made [After FAA]
Silica can be found in water as a natural forming mineral or an additive to public water supplies Silica is not regulated by the EPA and does not cause any health concerns However, silica can cause spotting of glassware, fixtures, and automobiles during the cleaning process
is a form of silicon and is found as quartz and sand flint It is used in the production of glass, ceramics and abrasives Back to Organisms page | Back to Coral Reef page
the fundamental silicon-oxygen compound, which has the empirical formula SiO2, and forms the basis of quartz and certain types of sand
A pigment made from quartz sand that has been crushed or ground A reinforcing filler for paints; it imparts burnish resistance, sheen uniformity and good flatting
a term for silicon carbide, usually quartz, a common mineral used in glass manufacture and in some instances glass decorating colors
one of the earth's most abundant minerals and a vital ingredient in ceramic manufacture It is the basic component of glass as well as of ceramic glazes and high quality clayware bodies
The common name for silicon dioxide A compound formed from silicon and oxygen Silica is a polymorph, that is, it exists in more than one state The states of silica are crystalline and noncrystalline (also called amorphous) Crystalline silica can take several forms: quartz (most common), cristobalite, tridymite, and four rare forms
n silicon dioxide (SiO2); a main component in most igneous and metamorphic and many sedimentary rocks; often a cement or replacement for rocks and fossils; quartz