Now its rarity has relegated it to the standing of a minor ore dispite its high manganese content. Crystals are the chief indicator for identification. Pyrolusite is softer and has a bluish streak. If manganite is massive, it is difficult to distinguish it from other manganese minerals. Fine crystals of manganite can make a nice addition to a mineral collection.
Color is black to steel gray.
Luster is metallic to dull in weather specimens. Crystals are opaque, translucent in only thin splinters. The terminations are generally blunted with domes and minor pyramid faces. The crystals are striated lengthwise. Crystals are usually grouped into tight bundles and columnar, massive and fiberous forms are also known.