Iceland spar

noun

: a birefringent transparent colorless variety of calcite

Word History

First Known Use

1771, in the meaning defined above

Time Traveler
The first known use of Iceland spar was in 1771

Dictionary Entries Near Iceland spar

Cite this Entry

“Iceland spar.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Iceland%20spar. Accessed 21 Jul. 2024.

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