Yaogangxian Mine, Yaogangxian W-Sn ore field, Yizhang Co., Chenzhou, Hunan, China


The term wolframite indicates intermediate members between hübnerite, MnWO4, and ferberite, FeWO4

Crystal System: monoclinic
Colour: greyish-black, yellow-brown, reddish-brown, blackish brown, black, red (rare)
Lustre: adamantine, resinous, metallic
Habitus: in massive or granular aggregates. Crystals are usually tabular
Hardness: 4 - 4½
Fracture: irregular/uneven
Cleavage: perfect on {010}
Density: 7.234 – 7.6 g/cm3
Origin and geological occurrence: it occurs in high-T hydrothermal veins and in greisens. Also in granite pegmatites and in alluvial and eluvial deposits

Smorf link


7.15  wolframite

7.15  Wolframite
Aggregate of prismatic crystals



Wolframite 7.19

7.19 Wolframite
Cleaved black crystals with quartz and chalcopyrite. Cabrera Mt., Spain

#economic minerals