Class : Sulfates, chromates, molybdates
    Subclass : Tungstates
    Crystal system : Monoclinic
    Chemistry : (Fe²⁺,Mn²⁺)WO₄
    Rarity : Quite common

Wolframite is the general term for the continuous solid solution ranging from hubnerite (MnWO₄) to ferberite (FeWO₄), although some authors restrict this name to most of the solid solution (between 20% and 80 % substitution of iron by manganese and vice versa). In the absence of precise analysis allowing to differentiate these two minerals, the term of wolframite is always used. It owes its name to the wolfram it contains (French and German terms for tungsten). The minerals of the wolframite group form prismatic lamellar crystals, more rarely flat needles united in sheaves, usually black in color, sometimes reddish-brown (hubnerite), of high density (greater than 7), present in pneumatolytic mineralization and the high temperature quartz veins around the granites. They are relatively alterable and do not keep well in alluvium. Wolframite is, in the broadest sense, the most important tungsten ore.

Ferberite : in France, the deposits of Puy-les-Vignes (Haute-Vienne), Montbelleux (Ille-et-Vilaine) and Leucamp (Cantal) produced large decimetric blades (more than 50 cm in Puy-les-Vignes).

Hubnerite : in France, hubnerite is present in centimetric crystals in the kaolin quarries of Echassières (Les Montmins and Le Mazet).

The wolframite can transformed the scheelite at high temperature, it then retains the octahedral shape of the scheelite. This wolframite pseudomorph after scheelite is known as "reinite".

Twins are common on {100}, rarer on {001}.

No scam known for this mineral.