#alumin

• Aluminizing — The act of aluminizing and its result; a thermochemical treatment or technological process of depositing a thin layer of aluminum onto the surface of steel, cast iron, or glass objects to protect them from corrosion and oxides or to provide high reflective properties.
• Aluminized — Having been coated with a thin, fine protective layer of aluminum via spraying, vacuum deposition, or galvanic processes; an object made of metal, glass, or plastic treated to achieve high reflectivity or enhanced corrosion resistance.
• Alumino- — A compounding element (prefixoid) used in international scientific, chemical, and mineralogical terminology to indicate the presence of aluminum or alumina within the structure of an organic compound or a complex mineral (e.g., aluminosilicate).
• Aluminous — Containing aluminum or alumina in a considerable proportion; a characteristic attributed to soils, clays, rocks, or chemical compounds that present a high concentration of this metal.
• Aluminosilicate — A complex mineral within the silicate class (representing a large portion of the Earth's crust, such as feldspars, zeolites, and micas) in whose crystalline frameworks part of the silicon atoms are replaced by aluminum atoms bound to oxygen.
• Aluminothermy — A metallurgical process based on the reduction of metal oxides using aluminum in the form of fine powder or granules, a highly exothermic reaction that releases a massive amount of heat and temperatures exceeding two thousand degrees, heavily used for welding railway tracks or obtaining pure metals.
• Aluminosis — A severe form of pneumoconiosis caused by the prolonged and chronic inhalation of fine aluminum dust or alumina particles within industrial work environments, manifested through progressive pulmonary fibrosis, coughing, and major respiratory difficulties.
• Alumo- — A compounding element (prefixoid) used in international scientific, chemical, and mineralogical terminology as a variant for 'alumino-'; indicates the presence of aluminum within the structure of a chemical compound or a complex mineral.
• Alumosilicate — A terminological or spelling variant (influenced by German and Russian nomenclatures) for 'aluminosilicat' (aluminosilicate); a complex mineral within the silicate class in whose crystalline frameworks part of the silicon atoms are replaced by aluminum atoms.
• Alunite — A natural mineral from the class of hydrated sulfates, structurally composed of a basic aluminum and potassium sulfate, having the chemical formula KAl3(SO4)2(OH)6. Historically called alumstone, it occurs as granular, fibrous masses or white, grayish, or reddish rhombohedral crystals, used on an industrial scale for extracting alum and aluminum.
• Alvanite — A rare natural mineral from the hydrated vanadate class, structurally composed of a hydrated aluminum and zinc vanadate, having the chemical formula Al3(VO4)(OH)6·2H2O or related. It occurs as microcrystalline aggregates, crusts, or rosettes of a pinkish-yellow, white, or grayish color, found in the oxidation zones of uranium and vanadium deposits.
• Alvanite — A formal variant or structural feminine adaptation of the term 'alvanit', sometimes used in older technical literature or mineralogical translations; a rock or mineral aggregate composed predominantly of this hydrated vanadate. It represents a compound of purely scientific and collecting interest due to its extreme rarity in the Earth's crust.
• Amphoteric — Describing substances, oxides, or hydroxides: exhibiting a chemical duality, having the capacity to behave either as an acid in the presence of a strong base or as a base in the presence of a strong acid. This structural character depends directly on the pH of the reaction medium and allows the formation of salts in both biochemical contexts.
• Ammonal — An industrial and military explosive substance composed of a homogeneous mixture of ammonium nitrate, aluminum powder, and trinitrotoluene (TNT) or charcoal. The aluminum functions as a powerful thermal agent that considerably increases the temperature and blast of the explosion, making amonal ideal for large-scale mining operations or for charging heavy projectiles.
• Analcite — A mineral belonging to the silicate class (tectosilicates subclass), structurally considered a member of the zeolite or feldspathoid group, with the chemical formula NaAlSi2O6·H2O. It occurs as regular cubic or trapezohedral (icositetrahedral) crystals, colorless, white, or pink, with a vitreous luster, frequently found in basalt geodes, alkaline igneous rocks, and some saline lacustrine sedimentary deposits.
• Andalusite — A structural mineral consisting of aluminum silicate that crystallizes in the orthorhombic system, being characteristic of metamorphic rocks formed under low pressures and medium to high temperatures. Due to its exceptional thermal resistance and high melting point, andalusite is widely used in industry as a refractory material for lining metallurgical furnaces, while its transparent and colored varieties are sometimes used as gemstones in jewelry.
• Andalusite — A linguistic variant or synonymous regional form of the standard term 'andaluzit', designating the natural aluminum silicate that crystallizes in the orthorhombic system. It is sometimes used in older geological treatises or technical translations to describe the rock or refractory mineral mass composed predominantly of this crystallized silicate type.
• Anticorodal — A commercial name for a range of aluminum alloys with small additions of magnesium, silicon, and manganese, characterized by high mechanical strength and exceptional resistance to atmospheric and chemical corrosion. In an industrial sense, this malleable and lightweight structural material is heavily utilized in hydraulics, shipbuilding, architectural profiles, and welded elements subjected to environmental stress.
• Antiperspirant — Reducing, blocking, or controlling the elimination of sweat through skin pores; a cosmetic product or pharmaceutical preparation structurally formulated with metallic salts (usually aluminum) that temporarily plug sweat gland ducts. This dual element prevents moisture and unpleasant odors, unlike a classic deodorant which only masks the scent.
• Antiperspirant — Having the property of diminishing, blocking, or regulating sweat secretion by temporarily obstructing skin pores; a substance or cosmetic formula structurally adapted to prevent underarm wetness and unpleasant odors. Unlike a purely deodorizing lotion, an antiperspirant composition acts directly at the level of eccrine glands using aluminum-based compounds.