Silicates are often of the form SiO<sub>4</sub> which forms a [[tetrahedron]]. These units can then be linked together to form regular [[lattice]]s - either chains, sheets, or larger frameworks. | Silicates are often of the form SiO<sub>4</sub> which forms a [[tetrahedron]]. These units can then be linked together to form regular [[lattice]]s - either chains, sheets, or larger frameworks. |