: a mineral that is a variety of pyrrhotite and that is widely but sparsely distributed (as on earth, in meteorites, and in lunar soil samples)

Examples of troilite in a Sentence

Recent Examples on the Web
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The Curved Artistry suite made with diamonds, cabochon chrysoprase, and troilite in graphic forms mimicked the rounded sculptural designs of ’60s and ’70s-era mod furniture. Paige Reddinger, Robb Report, 19 June 2025 The analysis also showed minerals like cubanite and troilite, both found in the Wild 2 comet and meteorites. Ashley Strickland, CNN, 3 Nov. 2021

Word History

Etymology

borrowed from German Troilit, from Domenico Troili †1793 Italian priest and naturalist + German -it -ite entry 1

First Known Use

circa 1868, in the meaning defined above

Time Traveler
The first known use of troilite was circa 1868

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Cite this Entry

“Troilite.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/troilite. Accessed 1 Aug. 2026.

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