These galena crystals are from the Elmwood Mine in Carthage, Smith County, Central Tennessee Ba-F-Pb-Zn District, Tennessee, USA.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 galena which is a secondary ore. This piece consists of vee-shaped formation of spinel twinned crystals. This piece measures 7/8 x 1/2 x 7/16 inches or 22 x 12 x 11 mm.