frameworksilikaatteja
Frameworksilicates, also known as tectosilicates, represent a major group of silicate minerals characterized by a three-dimensional framework structure. In this structure, each silicon atom is bonded to four oxygen atoms, and each oxygen atom is shared by two silicon atoms. This arrangement results in a rigid, three-dimensional network of SiO4 tetrahedra. The overall charge of the framework is typically negative, and this negative charge is balanced by interstitial cations, which can include alkali metals like sodium and potassium, as well as alkaline earth metals like calcium and magnesium.
The most common and abundant group of framework silicates is the feldspar group. Feldspars are essential components