Manganite

Definition:

  • (n.) One of the oxides of manganese; -- called also gray manganese ore. It occurs in brilliant steel-gray or iron-black crystals, also massive.
  • (n.) A compound of manganese dioxide with a metallic oxide; so called as though derived from the hypothetical manganous acid.

Compare manganite with other words:

manganite vs. mineral

manganese vs. manganite