- tetrahedral site
- тетраэдрическая координация, тетраэдрическая позиция
English-Russian electronics dictionary .
English-Russian electronics dictionary .
interstitial site — octahedral and tetrahedral open spaces within a close packed arrangement of atoms or ions in which a cation can fit … Mechanics glossary
pyroxene — pyroxenic /puy rok sen ik/, adj. /puy rok seen, peuh , puy rok seen /, n. any of a very common group of minerals of many varieties, silicates of magnesium, iron, calcium, and other elements, occurring as important constituents of many kinds of… … Universalium
Spinel — General Category Oxide minerals Spinel group Chemical formula MgAl2O4 … Wikipedia
Pyroxene — Figure 1: A sample of pyroxenite, a rock consisting mostly of pyroxene minerals. The pyroxenes are a group of important rock forming inosilicate minerals found in many igneous and metamorphic rocks. They share a common structure consisting of… … Wikipedia
Nitride — In chemistry, a nitride is a compound of nitrogen where nitrogen has a formal oxidation state of −3. Nitrides are a large class of compounds with a wide range of properties and applications.[1] The nitride ion, N3–, is never encountered in… … Wikipedia
Beudantite — Catégorie VIII : phosphates, arséniates, vanadates[1] Tsumeb, Otjikoto, Namibie, 2 x 2 x 1 cm … Wikipédia en Français
Crystal structure of boron-rich metal borides — Two single crystals of YB66 (1 cm diameter) grown by floating zone technique using (100) oriented seeds. In the top crystal, the seed (left from the black line) has same diameter as the crystal. In the bottom crystal (sliced), the seed is much… … Wikipedia
crystal — crystallike, adj. /kris tl/, n., adj., v., crystaled, crystaling or (esp. Brit.) crystalled, crystalling. n. 1. a clear, transparent mineral or glass resembling ice. 2. the transparent form of crystallized quartz. 3. Chem., Mineral. a solid body… … Universalium
Crystal — /kris tl/, n. 1. a city in SE Minnesota, near Minneapolis. 25,543. 2. a female given name. * * * I Any solid material whose atoms are arranged in a definite pattern and whose surface regularity reflects its internal symmetry. Each of a crystal s… … Universalium
clay mineral — any of a group of hydrous aluminum silicate minerals, as kaolinite, illite, and montmorillonite, that constitute the major portion of most clays. [1945 50] * * * Any of a group of important hydrous aluminum silicates with a layered structure and… … Universalium
amphibole — /am feuh bohl /, n. Mineral. any of a complex group of hydrous silicate minerals, containing chiefly calcium, magnesium, sodium, iron, and aluminum, and including hornblende, tremolite, asbestos, etc., occurring as important constituents of many… … Universalium