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

Recent Examples on the Web

Those traditional, extended glass vitrines that create more of a separation between shoppers and staff are being replaced, and the color palettes of store interiors are changing from dark brown to tourmaline, sunstone and topaz. —David Moin, Footwear News, 16 June 2025

Set into rugged, textured silver, a rainbow mix of faceted and polished sapphires, tourmalines and turquoises mark the hours in the 36mm watch case. —Kate Matthams, Forbes.com, 6 June 2025

Each stone of the necklace was surrounded by an arrangement of green beryl, aquamarine, tourmaline, sapphire, diamond, paraibas and tsavorite (green garnet) on 18K gold. —Rachel Flynn, People.com, 26 May 2025

Wearing a suit by the designer, Khan also sported one of the night’s perfect dandy accessories, a walking stick, conceptualized by Mukherjee to feature a Bengal tiger in 18-karat gold and embellished with tourmalines, sapphires, old mine-cut and brilliant-cut diamonds. —Laurie Brookins, HollywoodReporter, 12 May 2025

Word History

Etymology

Sinhalese toramalli carnelian

First Known Use

1759, in the meaning defined above

Rhymes for tourmaline

• acrolein
• adenine
• alkylene
• aniline
• anthracene
• aquiline
• asphaltene
• atlantean
• atrazine
• butadiene
• butylene
• caesarean

Kids Definition

tourmaline

noun

tour·​ma·​line ˈtu̇r-mə-lən 

-ˌlēn

: a mineral of variable color that makes a striking gem when transparent and cut