Definition of spinel ruby in English:

spinel ruby

Syllabification: spi·nel ru·by

noun

  • A deep red variety of spinel, often of gem quality.
    More example sentences
    • In ancient times spinel rubies and corundum rubies were equally well known, and the two were probably often confounded.
    • We visit the mining fields, where sapphires, topazes and spinel rubies are found.
    • As a rule the true ruby is blood-red, sometimes called ‘pigeon blood’; the spinel ruby is scarlet; and the minor variety, the ballas ruby, is rose-red.

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