white sapphire

American  

noun

Mineralogy.

1. a colorless variety of corundum, used as a gemstone.

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white sapphire British  

noun

1. a white pure variety of corundum, used as a gemstone

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Example Sentences

See Examples For:

white sapphire

By the admixture of 2 or 3% of a chromium compound with original materials the resulting white sapphire became ruby.

From Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 5 "Gassendi, Pierre" to "Geocentric" by Various

On the squares and streets, wherever an eye was cast, banners, white, sapphire, purple, and gilded, were waving.

From The Deluge, Vol. II. (of 2) An Historical Novel of Poland, Sweden, and Russia. by Sienkiewicz, Henryk

Under the influence of the high temperature the silica of the crucible gradually decomposes the lead aluminate, forming lead silicate, which remains in the liquid state, and alumina, which crystallizes as white sapphire.

From Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 5 "Gassendi, Pierre" to "Geocentric" by Various

In the light colored stones and in white sapphire, the difficulty is greater, as there are no color variations in the latter case.

From A Text-Book of Precious Stones for Jewelers and the Gem-Loving Public by Wade, Frank Bertram

It has been produced artificially by adding iron instead of chromium to the matrix from which the white sapphire crystallizes.

From Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 5 "Gassendi, Pierre" to "Geocentric" by Various