ruby spinel

noun

Definition of ruby spinel

: a usually red spinel used as a gem

First Known Use of ruby spinel

1796, in the meaning defined above

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The first known use of ruby spinel was in 1796

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Cite this Entry

“Ruby spinel.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/ruby%20spinel. Accessed 21 Sep. 2020.

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