tourmaline
noun
tour·ma·line
ˈtu̇r-mə-lən 
-ˌlēn
: a mineral of variable color that consists of a complex borosilicate and is valued as a gem when transparent and cut
Examples of tourmaline in a Sentence
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Comprised of 27 large Australian South Sea baroque pearls, per McKinney’s official website, the necklace also featured white diamonds, brown diamonds, blue, pink and purple sapphires, pink tourmalines, amethysts and rubellites.
—
Julia Teti, Footwear News, 7 Jan. 2026
Also included is a blinding arrangement of 27 large Australian South Sea baroque pearls, with white and brown diamonds and a mix of blue, pink and purple sapphires, along with pink tourmalines, amethysts and rubellites piling on the sparkle.
—Michelle Lee, PEOPLE, 7 Jan. 2026
The vibrant rubies, emeralds, sapphires, and tourmalines reflect G-Dragon’s eclectic aesthetic, according to Jacob & Co.
—Rachel Cormack, Robb Report, 7 Jan. 2026
Its tourmaline ceramic barrel delivers even heat distribution for faster styling with less damage, while negative ion technology helps seal in moisture and boost shine for a sleek, frizz-free finish.
—Kiana Murden, Vogue, 18 Dec. 2025
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Julia Teti, Footwear News, 7 Jan. 2026
Also included is a blinding arrangement of 27 large Australian South Sea baroque pearls, with white and brown diamonds and a mix of blue, pink and purple sapphires, along with pink tourmalines, amethysts and rubellites piling on the sparkle.
—Michelle Lee, PEOPLE, 7 Jan. 2026
The vibrant rubies, emeralds, sapphires, and tourmalines reflect G-Dragon’s eclectic aesthetic, according to Jacob & Co.
—Rachel Cormack, Robb Report, 7 Jan. 2026
Its tourmaline ceramic barrel delivers even heat distribution for faster styling with less damage, while negative ion technology helps seal in moisture and boost shine for a sleek, frizz-free finish.
—Kiana Murden, Vogue, 18 Dec. 2025
See All Example Sentences for tourmaline
Cite this Entry
“Tourmaline.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/tourmaline. Accessed 13 Jan. 2026.
Copy CitationKids Definition
tourmaline
noun
tour·ma·line
ˈtu̇r-mə-lən
-ˌlēn
: a mineral of variable color that makes a striking gem when transparent and cut
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