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braunite

[brou-nahyt] /ˈbraʊ naɪt/
noun
1.
an ore of manganese, 3Mn 2 O 3 ⋅MnSiO 3 .
Origin
1830-1840
1830-40; named after A. E. Braun (1809-56), German official; see -ite1
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for braunite

braunite

/ˈbraʊnaɪt/
noun
1.
a brown or black mineral that consists of manganese oxide and silicate and is a source of manganese. Formula: 3Mn2O3.MnSiO3
Word Origin
C19: named after A. E. Braun (1809–56), German official in the treasury at Gotha
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
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