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[mang-guh-nahyt] /ˈmæŋ gəˌnaɪt/
a gray to black mineral, hydrous manganese oxide, MnO(OH); gray manganese ore.
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 .
1820-30; mangan(ese) + -ite1 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for manganite
  • The key is that the resistance of the manganite crystals can be electrically manipulated and easily measured.
  • Orbital and spin correlations in a manganite probed with soft x-ray resonant diffraction.
  • Theoretical modeling of manganite interfaces: metal insulator transitions and exchange bias.
British Dictionary definitions for manganite


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
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Encyclopedia Article for manganite

an ore mineral of manganese, basic manganese oxide [MnO(OH)] that forms dark gray to black crystal bundles or fibrous masses. Important deposits exist at Ilfeld, Ilmenau, Siegen, and Horhausen, Ger.; the Lauron and Aure valleys, in France; St. Just, Cornwall, Eng.; and Michigan and California, U.S. As a manganese ore it ranks after pyrolusite and romanechite, to which it readily alters. For detailed physical properties, see oxide mineral (table)

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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