This calcite crystal is 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 gangue species like calcite. It is a carbonate mineral containing the elements Ca, C and O. This specimen which is from the Cumberland Shaft consists of a translucent to transparent amber to orange crystal on a breccia chert matrix that hosts sphalerite crystal clusters. This piece measures 3 1/4 x 2 1/4 x 2 inches or 82 x 57 x 50 mm.