Oriental topaz

noun

1. a variety of corundum resembling topaz in colour and used as a gemstone

Example Sentences

From his experiments he believes that yellow corundum, or oriental topaz, may have been formed from blue corundum under the influence of radioactive substances present in the soil in which the sapphire was embedded.

From Project Gutenberg

The colourless basis of the true Oriental precious stones being taken as crystallized alumina or white sapphire, when the colouring matter is red the stone is called ruby, when blue sapphire, when green Oriental emerald, when orange-yellow Oriental topaz, and when violet Oriental amethyst.

From Project Gutenberg

The Oriental topaz, on the other hand, is a precious stone of great value.

From Project Gutenberg

The Oriental Topaz.—The topaz is what is called a semi-precious stone.

From Project Gutenberg

When of very fine yellow color the yellow sapphire is sometimes called "Oriental topaz" by jewelers, the term "Oriental" as thus used indicating that the material is corundum.

From Project Gutenberg