water sapphire

noun

Definition of water sapphire

: a deep blue cordierite sometimes used as a gem

First Known Use of water sapphire

circa 1741, in the meaning defined above

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The first known use of water sapphire was circa 1741

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Cite this Entry

“Water sapphire.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/water%20sapphire. Accessed 21 Oct. 2020.

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Britannica.com: Encyclopedia article about water sapphire

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