tourmaline

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noun 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

Recent Examples of tourmaline from the Web

The perimeter has darker stones like tourmaline, hematite and pyrite that are said to block negative energy and electromagnetic fields produced by electronic objects.

— caroline tell, New York Times, "The Great Crystal Boom of 2017," 15 Aug. 2017
But apart from an alteration to its materials and the addition of various attachments and heat conductors, like ceramic and tourmaline, the hair dryer has changed very little since its birth.

— maria teresa hart, The Atlantic, "The Hair Dryer, Freedom’s Appliance," 1 Aug. 2017
There’s a stretch of 125th Street in Harlem, from Fifth to Ninth Avenues, lined with vendors who spread tourmaline and ebony wood earrings and colorful wax-print shirts across white cloth–covered tables for barter.

— monica kim, Vogue, "This Is How a Japanese Designer Does Harlem Swagger," 18 July 2017
Harry Josh Pro Tools Ceramic Flat Styling Iron The hair stylists to Chrissy Teigen, Jourdan Dunn, and Olivia Palermo swear by this nano-ceramic, tourmaline flat iron to achieve shiny bombshell waves and evenly straightened hair.

— the editors, Marie Claire, "7 Hair Straighteners That Crush It in the Styling Department," 23 June 2017
Harry Josh Pro Tools Ceramic Flat Styling Iron The hair stylists to Chrissy Teigen, Jourdan Dunn, and Olivia Palermo swear by this nano-ceramic, tourmaline flat iron to achieve shiny bombshell waves and evenly straightened hair.

— the editors, Marie Claire, "7 Hair Straighteners That Crush It in the Styling Department," 23 June 2017
A case in point is his piece in the Christie's sale: an abstract yet geometric gem suite (expected to sell for $25,000-38,000) that offers an explosion of color through its use of green tourmaline, rubies, sapphires, diamonds and gold.

— ming liu, CNN, "Meet the Asian jewelers shaping modern jewelry design," 28 May 2017
The comb, which is designed to be safe for all hair types, is made with tourmaline ceramic that is infused with argan oil to gently straighten hair while eliminating frizz.

— courtney ortega, star-telegram.com, "High-powered brush promises sleek, straight hair," 26 May 2017
This Kataoka ring ($4,870) is made of two fused tourmaline stones and is set on hand-blended rose gold.

— katy schneider, The Cut, "Custom Couches, Minimalist Wall Clocks, and a Kids’ Store From the Intermix Team," 14 May 2017

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.