BRAUNITE
Source: 567
Braun″ite (�), n. (Min.) A native oxide of manganese, of dark brownish black color. It was named from a Mr. Braun of Gotha.
Source: 567
Braun″ite (�), n. (Min.) A native oxide of manganese, of dark brownish black color. It was named from a Mr. Braun of Gotha.