Wolframite

Material usually chemically between Hübnerite and Ferberite with unspecified chemical composition. Rarely, "wolframite" could also correspond to other members of the wolframite group. Occurs in high-temperature hydrothermal veins, in greisen, granitic pegmatites; in alluvial and eluvial deposits. "Wolframite" of the Badzhalski ore deposit is extremely enriched in rhenium: up to 3.52 wt.% Re2>O7 (Alekseev & Marin, 2018).

Structural context

Wolframite
Crystal System monoclinic

Chemical context

Stoichiometric formulas

Wolframite
mindat.org
  • March 13, 2023(Fe2+)WO4 to (Mn2+)WO4
mineralogy.rocks
  • Aug. 30, 2022(Mn2+,Fe2+)W6+O4

Physical properties

StreakStreak entities, recognized using a custom trained NER model
  • reddish brown
Streak noteOriginal streak note from the source
Reddish brown
Lustre
Sub-Metallic
Fracture
Irregular/Uneven
Tenacity
brittle
Hardness
4—4.5