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Translations for „corundum“ in the Russian » English Dictionary

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кору́нд

corundum

Monolingual examples (not verified by PONS Editors)

English

Some gemstones described as lab-grown (synthetic) alexandrite are actually corundum laced with trace elements (e.g., vanadium) or color-change spinel and are not actually chrysoberyl. en.wikipedia.org

It occurs with calcite, ettringite, wollastonite, larnite, brownmillerite, gehlenite, diopside, pyrrhotite, grossular, spinel, afwillite, jennite, portlandite, jasmundite, melilite, kalsilite and corundum in the limestone xenoliths. en.wikipedia.org

In some cases they contain abnormal constituents such as calcite, sillimanite or corundum. en.wikipedia.org

It largely consists of the mineral corundum (aluminium oxide), mixed with other species such as the iron-bearing spinels, hercynite, and magnetite, and also rutile (titania). en.wikipedia.org

Minerals that often display parting include the pyroxenes, hematite, magnetite, and corundum. en.wikipedia.org

Accessory minerals include kyanite, rutile, quartz, lawsonite, coesite, amphibole, phengite, paragonite, zoisite, dolomite, corundum, and, rarely, diamond. en.wikipedia.org

It is commonly associated with olivine, magnetite, serpentine, and corundum. en.wikipedia.org

It is black or dark grey in colour, less dense than translucent-brown corundum with a specific gravity of between 3.5 and 3.8. en.wikipedia.org

The typical asteria is the star-sapphire, generally a bluish-grey corundum, milky or opalescent, with a star of six rays. en.wikipedia.org

Sapphire and ruby are both varieties of the same mineral; corundum. en.wikipedia.org

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