braunite

Noun

(uncountable)

(mineralogy) A silicate mineral containing divalent and trivalent manganese and forming grey-black tetragonal crystals.

Origin

Braun +‎ -ite after alderman Braun of Gotha, Thuringia, Germany.

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"braunite." YourDictionary, n.d. Web. 20 January 2019. <https://www.yourdictionary.com/braunite>.

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braunite. (n.d.). Retrieved January 20th, 2019, from https://www.yourdictionary.com/braunite

SentencesSentence examples

Sentence Examples

Manganese is found widely distributed in nature, being generally found to a greater or less extent associated with the carbonates and silicates of iron, calcium and magnesium, and also as the minerals braunite, hausmannite, psilomelane, manganite, manganese spar and hauerite.
Manganese sesquioxide, Mn203, found native as the mineral braunite, may be obtained by igniting the other oxides in a mixture of nitrogen and oxygen, containing not more than .26% of the latter gas (W.

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