Vocabulary Entry

tourmaline

|noun

noun

A mineral or crystalline substance that is often used as a gemstone, typically characterized by a complex boron silicate structure.

Example Sentences

"The jeweler showcased a stunning ring featuring a deep green tourmaline."

"Tourmaline comes in a wide variety of colors, including pink, blue, and black."

"Many people believe that wearing tourmaline can promote healing and positive energy."