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ruby spinel
noun
, Mineralogy.
- a deep red, transparent variety of spinel, used as a gem.
ruby spinel
noun
- a red transparent variety of spinel, used as a gemstone
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Word History and Origins
Origin of ruby spinel1
First recorded in 1830–40
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Example Sentences
Similarly, ruby can at once be distinguished from even the finest garnet or ruby spinel, as the last two are singly refracting.
From Project Gutenberg
The "rubies" of the poet's time were frequently ruby spinels, or the so-called "balas rubies" from Badakshan, in Afghan Turkestan.
From Project Gutenberg
The peculiar yellowish character of the red color led us to suspect ruby spinel.
From Project Gutenberg
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