Wiktionary (0.00 / 0 votes) Rate this definition: module (Noun). A self-contained component of a system, often interchangeable, which has a well-defined interface to the other components. module (Noun). A standard unit of measure used for determining the proportions of a building. module (Noun).
A silicate is a compound containing an anionic silicon compound. The great majority of the silicates are oxides, but hexafluorosilicate ([SiF6]2â) and other anions are also included. 4 or its compounds. Related to orthosilicate are families of anions (and their compounds) with the formula [SiO2+n]2nâ.
The vast majority of minerals in the Earth's rocks, from the crust down to the iron core, are chemically classed as silicates. The silicate minerals are all based upon a chemical unit called the silica tetrahedron.The silica tetrahedron consists of a silicon atom surrounded by four oxygen atoms.solated silica tetrahedra occur in many silicates such as olivine, where the tetrahedra are surrounded by iron and magnesium cations. Pairs of tetrahedra (SiO 7) occur in several silicates, the best known of which is probably hemimorphite.