korund prevod, Srpsko - Engleski rečnik i prevodilac teksta

Prevod reči: korund

Smer prevoda: srpski > engleski

korund [ muški rod {mineral} ]

Veoma tvrd mineral iste klase kao rubin i safir, upotrebljava se za čišćenje i glačanja metala (šmirgl). (lat.)

alumina [ imenica {mineral} ]
Generiši izgovor

ETYM Latin alumen, aluminis. Related to Alum.
Oxide of aluminum.
Any of various forms of aluminum oxide occurring naturally as corundum; SYN. aluminum oxide, aluminium oxide.
Or corundum; Al2O3 oxide of aluminum, widely distributed in clays, slates, and shales. It is formed by the decomposition of the feldspars in granite and used as an abrasive. Typically it is a white powder, soluble in most strong acids or caustic alkalis but not in water. Impure alumina is called “emery”. Rubies and sapphires are corundum gemstones.

corundom [ imenica {mineral} ]
Generiši izgovor

Very hard mineral used as an abrasive; SYN. corundum.

corundum [ imenica {mineral} ]
Generiši izgovor

Exceptionally hard mineral, crystallized alumina, used, when transparent, as gem.
Native aluminum oxide, Al2Othe hardest naturally occurring mineral known apart from diamond (corundum rates 9 on the Mohs’ scale of hardness); lack of cleavage also increases its durability. Its crystals are barrel-shaped prisms of the trigonal system. Varieties of gem-quality corundum are ruby (red) and sapphire (any color other than red, usually blue). Poorer-quality and synthetic corundum is used in industry, for example as an abrasive.
Corundum forms in silica-poor igneous and metamorphic rocks. It is a constituent of emery, which is metamorphosed bauxite.



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