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manganite

American  
[mang-guh-nahyt] / ˈmæŋ gəˌnaɪt /

noun

  1. a gray to black mineral, hydrous manganese oxide, MnO(OH); gray manganese ore.

  2. Chemistry. any of a series of salts containing tetravalent manganese and derived from either of two acids, H 4 MnO 4 or H 2 MnO 3 .

manganite British  
/ ˈmæŋɡəˌnaɪt /

noun

  1. a blackish mineral consisting of basic manganese oxide in monoclinic crystalline form: a source of manganese. Formula: MnO(OH)

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of manganite

First recorded in 1820–30; mangan(ese) + -ite 1

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Its ores occur abundantly in nature as the minerals pyrolusite, manganite, etc.

From The Gutenberg Webster's Unabridged Dictionary Section M, N, and O by Project Gutenberg

The sesquioxide is found crystallized in an anhydrous form in braunite, and hydrated in manganite.

From Scientific American Supplement, No. 401, September 8, 1883 by Various

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.