Lengenbach Quarry
The Lengenbach Quarry is located in the Binn Valley and it is noted among the mineralogical community for its unusual sulfosalt mineral specimens.
Image:Sphalerite-JR.jpg|thumb|left|Sphalerite crystal on dolomite, Lengenbach
The dolomite hosted deposit of the quarry is in the Binn Valley, a small valley in the southwest of Switzerland in the Swiss canton of Valais. To its south lies Italy.