最終更新日：2024/08/01

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

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braunite

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braunite

noun

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

Braunite is a rare mineral that is often found in manganese deposits.

意味（1）

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