du·​mor·​ti·​er·​ite du̇-ˈmȯr-tē-ə-ˌrīt How to pronounce dumortierite (audio)
 also  dyu̇-
: a bright especially blue mineral consisting of a borosilicate of aluminum

Examples of dumortierite in a Sentence

Recent Examples on the Web The standout features are dials decorated with Roman numerals cut directly in jasper, jade, and dumortierite, to match the colors of the cabochons on the winding crowns. Justin Fenner, Robb Report, 27 Mar. 2023

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'dumortierite.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History


French dumortiérite, from Eugène Dumortier †1876 French paleontologist

First Known Use

1881, in the meaning defined above

Time Traveler
The first known use of dumortierite was in 1881

Dictionary Entries Near dumortierite

Cite this Entry

“Dumortierite.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/dumortierite. Accessed 18 Apr. 2024.

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