Hubnerite
Formula: MnWO4
Species: Oxides
Name: Named in 1865 by Eugene N. Riotte for Friedrich Adolph Hübner, German mining engineer and metallurgist from Freiberg, Saxony.
Type Locality: Erie and Enterprize veins, Ellsworth Mine, Ellsworth, Ellsworth Mining District (Mammoth Mining District), Nye County, Nevada, USA
Color: Yellow-brown, reddish-brown, blackish brown, black, red (rare)
Lustre: Adamantine, Resinous, Metallic
Hardness: 4 – 4½
Density: 7.12 – 7.18
Crystal System: Monoclinic
Member of: Wolframite Group, Ferberite-Hübnerite series