Wolframite Group
Kupferberg, Hagental, Gernrode, Quedlinburg, Harz, Saxony-Anhalt, Germany
Part of a "large" Wolframite crystal in fracture.
The fracture is a characteristic to distinguish it from tourmaline, to it occurs sometimes, even intergrown with it, at this location ... And is not easy to detect in this case!
Field of view: 8,3 mm
Photo and collection Thomas Lühr