cordierite

noun

cor·​di·​er·​ite ˈkȯr-dē-ə-ˌrīt How to pronounce cordierite (audio)
: a blue mineral of vitreous luster and strong dichroism that consists of a silicate of aluminum, iron, and magnesium

Examples of cordierite in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Made of strong cordierite stoneware material, these stones are also ideal for making individual pizzas. Michelle Love, Better Homes & Gardens, 25 May 2023 That said, since cordierite is porous, like cast iron, it should never be washed with soap. Rebecca Norris, Peoplemag, 14 Feb. 2023 The PizzaQue uses a 14-inch cordierite pizza stone and propane gas to make a crispy pizza in six minutes. Billy Cadden, Popular Science, 24 May 2018 No calcite, cordierite, or tourmaline crystal has turned up at a Viking archaeological site so far. Kiona N. Smith, Ars Technica, 6 Apr. 2018 Multiple translucent crystals fit the bill, namely calcite, cordierite and tourmaline. Steph Yin, New York Times, 6 Apr. 2018

Word History

Etymology

French, from Pierre L. A. Cordier †1861 French geologist

First Known Use

circa 1814, in the meaning defined above

Time Traveler
The first known use of cordierite was circa 1814

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Cite this Entry

“Cordierite.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/cordierite. Accessed 6 Jul. 2026.

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