This sphalerite is from the Elmwood Mine in Carthage, Smith County, Tennessee, Ba-F-Pb-Zn District, Tennessee, US. This mine contains three shafts called the Elmwood, Cumberland, and Gordonsville. It has an entry slope called the Stonewall. They contain eleven different minerals including fluorite. It is a common gangue mineral associated with the sphalerite which is a sulfide (Zn and S) and the primary ore at the mine. This specimen consists of a rosette type formation of complex sphalerite crystals with a purple fluorite crystal attached. The sphalerite has a ruby jack or red color. This piece measures 2 5/8 x 2 1/2 x 1 1/8 inches 67 x 64 x 28 mm.