Category:Manganite

Man"ga*nite, n.

1. (Min.)

Defn: One of the oxides of manganese; -- called also gray manganese ore. It occurs in brilliant steel-gray or iron-black crystals, also massive.

2. (Chem.)

Defn: A compound of manganese dioxide with a metallic oxide; so called as though derived from the hypothetical manganous acid.