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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Topped with an ethereal paraiba tourmaline on a mesh of marquise-cut diamonds and morganites to convey the pink sands of Sardinia, the Marea Rosa necklace was a case in point.
—
Kate Matthams, Forbes.com, 17 July 2025
Each of the wand attachments is made of tourmaline ceramic to help heat the hair evenly and reduce heat damage.
—Kiana Murden, Vogue, 1 July 2025
Each evening, the crystal-clear water erupted in a kaleidoscope of bioluminescence, while Reiki students could dig up amethyst and tourmaline from crystal seams that crisscrossed the island.
—Charlie Campbell, TIME, 17 Mar. 2025
Extending the emphasis on nature, a ring with a 6.02 carat Brazilian aquamarine, resting on a shank embellished with two Paraiba tourmalines and diamond petals to mimic a rose, joins the new line.
—India Brown, Robb Report, 8 July 2025
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Kate Matthams, Forbes.com, 17 July 2025
Each of the wand attachments is made of tourmaline ceramic to help heat the hair evenly and reduce heat damage.
—Kiana Murden, Vogue, 1 July 2025
Each evening, the crystal-clear water erupted in a kaleidoscope of bioluminescence, while Reiki students could dig up amethyst and tourmaline from crystal seams that crisscrossed the island.
—Charlie Campbell, TIME, 17 Mar. 2025
Extending the emphasis on nature, a ring with a 6.02 carat Brazilian aquamarine, resting on a shank embellished with two Paraiba tourmalines and diamond petals to mimic a rose, joins the new line.
—India Brown, Robb Report, 8 July 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 30 Jul. 2025.
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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