Corundum vs. Sapphire — What's the Difference?
Difference Between Corundum and Sapphire
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Compare with Definitions
Corundum
Corundum is a crystalline form of aluminium oxide (Al2O3) typically containing traces of iron, titanium, vanadium and chromium. It is a rock-forming mineral.
Sapphire
Sapphire is a precious gemstone, a variety of the mineral corundum, consisting of aluminium oxide (α-Al2O3) with trace amounts of elements such as iron, titanium, chromium, vanadium, or magnesium. It is typically blue, but natural "fancy" sapphires also occur in yellow, purple, orange, and green colors; "parti sapphires" show two or more colors.
Corundum
An extremely hard mineral, aluminum oxide, Al2O3, sometimes containing iron, magnesia, or silica, that occurs in gem varieties such as ruby and sapphire and in a common black, brown, or blue form used chiefly in abrasives.
Sapphire
A transparent precious stone, typically blue, which is a variety of corundum (aluminium oxide)
A sapphire ring
Corundum
(mineral) An extremely hard mineral, a form of aluminum oxide with the chemical formula Al2O3, that occurs in the form of the gemstones sapphire and ruby; it is used as an abrasive.
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Sapphire
A small hummingbird with shining blue or violet colours in its plumage and a short tail.
Corundum
The mineral alumina (Al2O3), as found native in a crystalline state. Transparent varieties are used as gemstones, including sapphire, which is the fine blue variety; the oriental ruby, or red sapphire; the oriental amethyst, or purple sapphire; and adamantine spar, the hair-brown variety. It is the hardest substance found native, next to the diamond.
Sapphire
A clear hard variety of corundum used as a gemstone that is usually blue but may be any color except red.
Corundum
Very hard mineral used as an abrasive
Sapphire
A corundum gem.
Sapphire
The blue color of a gem sapphire.
Sapphire
Made of or resembling a gem sapphire.
Sapphire
Having the color of a blue sapphire.
Sapphire
Of or relating to a 65th anniversary.
Sapphire
(countable) A clear deep blue variety of corundum, valued as a precious stone.
Sapphire
A white, yellow, or purple variety of corundum, either clear or translucent.
Sapphire
A deep blue colour.
Sapphire
(countable) Any hummingbird in the genera Hylocharis and Chlorestes, as well as the rufous-throated sapphire, which is now in the genus Amazilia.
Sapphire
Any of the butterflies in the southern Asian lycaenid genus Heliophorus or the African lycaenid genus Iolaus.
Sapphire
Of a deep blue colour.
Sapphire
Pertaining to a 45th year
Sapphire
Native alumina or aluminium sesquioxide, Al2O3; corundum; esp., the blue transparent variety of corundum, highly prized as a gem.
Of rubies, sapphires, and of pearlés white.
Sapphire
The color of the gem; bright blue.
Sapphire
Any humming bird of the genus Hylocharis, native of South America. The throat and breast are usually bright blue.
Sapphire
Of or resembling sapphire; sapphirine; blue.
Sapphire
A precious transparent stone of rich blue corundum valued as a gemstone
Sapphire
A transparent piece of sapphire that has been cut and polished and is valued as a precious gem
Sapphire
A light shade of blue
Sapphire
Having the color of a blue sapphire;
Sapphire eyes
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