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benitoite

American  
[buh-nee-toh-ahyt] / bəˈni toʊˌaɪt /

noun

  1. a rare mineral, barium titanium silicate, BaTiSi 3 O 9 , occurring in blue hexagonal crystals exhibiting dichroism.

Etymology

Origin of benitoite

1905–10; named after San Benito County, California; -ite 1

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.