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vivianite

American  
[viv-ee-uh-nahyt] / ˈvɪv i əˌnaɪt /

noun

  1. a secondary mineral, hydrous ferrous phosphate, Fe 3 (PO4 ) 2 ⋅8H 2 O, occurring in the form of pale blue crystals or powder.

Etymology

Origin of vivianite

1815–25; named after J. G. Vivian, 19th-century English mineralogist, who found it; see -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.

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