tour·ma·line | \ˈtu̇r-mə-lən, -ˌlēn\

Definition of tourmaline 

: 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

Recent Examples on the Web

Available in 11 shades, this foundation also contains a natural gemstone called tourmaline to provide brilliance, pearl powder, and nourishing camellia leaf extract. Wendy Gould, Allure, "The 9 Best Powder Foundations to Thwart Summer Sweat," 3 July 2018 There’s power behind pairing different gemstones, too: Novick explains how pink and green tourmaline complement each other and coordinate with the Heart Chakra. Laura Lajiness, Glamour, "The Best Jewelry for Your Birthstone," 26 Jan. 2018 And cobalt and copper mines in the country’s Katanga region are rich in minerals like tourmaline, amethyst, citrine, blue and smoky quartz—all coveted by healing crystal sellers. Emily Atkin, The New Republic, "Do You Know Where Your Healing Crystals Come From?," 11 May 2018 Don your fox fur, snake skin, eagle feathers, gold, silver and tourmaline. Ed Masley, azcentral, "Phoenix local music picks for May: Hogjaw, Technicolors, the Woodworks, Intent, Sunday at Noon," 3 May 2018 Jacquie Aiche’s store in Los Angeles is full of jewelry items made from delicate raw quartz, tourmaline, moonstone, and countless other special stones. Emily Farra, Vogue, "Seeking Love (and Good Vibes) This Valentine’s Day? Try Jacquie Aiche’s New Ruby, Quartz, and Tourmaline Jewelry," 10 Feb. 2018 Inexpensive gemstones with a tint include morganites, aquamarines, amethysts, tourmaline, and citrine stones. Southern Living, "Diamond (Alternatives) Are A Girl's Best Friend," 19 Apr. 2018 Multiple translucent crystals fit the bill, namely calcite, cordierite and tourmaline. Steph Yin, New York Times, "The Crystals That May Have Helped Vikings Navigate Northern Seas," 6 Apr. 2018 No calcite, cordierite, or tourmaline crystal has turned up at a Viking archaeological site so far. Kiona N. Smith, Ars Technica, "Mysterious sunstones in medieval Viking texts could really have worked," 6 Apr. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'tourmaline.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of tourmaline

1759, in the meaning defined above

History and Etymology for tourmaline

Sinhalese toramalli carnelian

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The first known use of tourmaline was in 1759

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