braunite

[ brou-nahyt ]

noun

1. an ore of manganese, 3Mn 2 O 3 ⋅MnSiO 3 .

braunite

/ ˈbraʊnaɪt /

noun

1. a brown or black mineral that consists of manganese oxide and silicate and is a source of manganese. Formula: 3Mn 2 O 3 .MnSiO 3

Word History and Origins

Origin of braunite¹

1830–40; named after A. E. Braun (1809–56), German official; -ite ¹

Word History and Origins

Origin of braunite¹

C19: named after A. E. Braun (1809–56), German official in the treasury at Gotha

Example Sentences

Braunite, is a dark brown substance, of a glassy metallic lustre, affording a brown powder.

From Project Gutenberg

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

From Project Gutenberg