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
The collection reinterprets the serpent’s scales through flexible articulated gold links that wrap around diamonds, rubellites, tourmalines, emeralds and sapphires.
—
Anthony Demarco,
Forbes.com,
1 July 2026
While sapphires, emeralds and rubies have long dominated the colored gemstone category, consumers are turning to spinel, alexandrite, tourmaline and parti sapphires.
—
Lauren Fisher,
Footwear News,
26 June 2026
Each large stone is surrounded by clusters of green beryls, aquamarines, tourmalines, sapphires, diamonds, paraibas, and tsavorites (green garnet).
—
Hannah Malach,
InStyle,
16 June 2026
The necklace is punctuated by orange fire-opal cabochons and indicolite tourmalines, concealing a diamond-pavé dial at the center.
—
Taylor Stoddard,
Robb Report,
16 June 2026
See All Example Sentences for tourmaline
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Anthony Demarco,
Forbes.com,
1 July 2026
While sapphires, emeralds and rubies have long dominated the colored gemstone category, consumers are turning to spinel, alexandrite, tourmaline and parti sapphires.
—
Lauren Fisher,
Footwear News,
26 June 2026
Each large stone is surrounded by clusters of green beryls, aquamarines, tourmalines, sapphires, diamonds, paraibas, and tsavorites (green garnet).
—
Hannah Malach,
InStyle,
16 June 2026
The necklace is punctuated by orange fire-opal cabochons and indicolite tourmalines, concealing a diamond-pavé dial at the center.
—
Taylor Stoddard,
Robb Report,
16 June 2026
See All Example Sentences for tourmaline
Cite this Entry
“Tourmaline.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/tourmaline. Accessed 6 Jul. 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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