from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A manganese tungstate mineral that forms reddish-brown to black monoclinic prismatic submetallic crystals.
from The Century Dictionary and Cyclopedia
- n. Manganese tungstate, a rare mineral occurring in bladed cleavable masses of a brownish-red color.
Adolf Huebner, German mineralogist, and -ite. (Wiktionary)