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benitoite

[ buh-nee-toh-ahyt ]

noun

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


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Word History and Origins

Origin of benitoite1

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

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