keretszilikátok

Keretszilikátok is a Hungarian term referring to a group of inorganic compounds, specifically silicates with a framework structure. In these structures, silicon and oxygen atoms form a three-dimensional network, where each silicon atom is typically bonded to four oxygen atoms, and each oxygen atom is shared by two silicon atoms. This results in a formula unit of SiO2, or silica, in its purest form.

Many common minerals are keretszilikátok, including quartz, tridymite, and cristobalite. These minerals are characterized by their hardness, high melting point, and chemical inertness. The specific arrangement of the silicon-oxygen tetrahedra within the framework determines the mineral's properties and crystal form. Variations in this framework, such as the presence of interstitial cations or substitutions of other elements like aluminum for silicon, lead to a vast array of silicate minerals with diverse properties.

These framework silicates are abundant in the Earth's crust and play a significant role in geological processes. They are found in igneous, metamorphic, and sedimentary rocks. Their stability and resistance to weathering make them essential components of many geological formations. Industrially, certain keretszilikátok, particularly quartz and its varieties, are used in applications ranging from glassmaking and ceramics to electronics and construction materials due to their unique physical and chemical characteristics.