Origin of manganite
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for manganite
It is a grey stone, full of crystalline needles, like manganite.Two Years Among the Savages of New Guinea.
W. D. Pitcairn
The hydrate occurs sometimes in nature as black crystals (manganite).
Manganite, or hydroxide of manganese; is brownish-black or iron-black, powder brown, with somewhat of a metallic lustre.
The sesquioxide is found crystallized in an anhydrous form in braunite, and hydrated in manganite.
- a blackish mineral consisting of basic manganese oxide in monoclinic crystalline form: a source of manganese. Formula: MnO(OH)