Dims: 4.1 x 3.2 x 1.9" (10.4 x 8.1 x 4.8 cm)
Wt: 1 lb., 6.0 oz. (623 g)
Elmwood Mine, Carthage, Smith County, Tennessee, U.S.A.
This hand specimen consists of a cluster of large, heavily-intergrown Sphalerite crystals. Their intense intergrowth makes measurement difficult, but I estimate that the largest crystals measure up to 0.8" (2.0 cm) or more along an edge. There are several spots of minor damage and a few broken crystals, but most are still intact and in good condition. This intergrowth has also severely warped their forms- though crystal form is evident, it is usually impossible to separate one crystal from another, and the tendency for Sphalerite to twin compounds this problem. All have a very dark brown color and the standard adamantine luster- their depth of color and intergrowth make only the smallest crystals visibly translucent or transparent. There are no other minerals present on the piece, and only a tiny bit of the gray limestone base rock is visible on the bottom of the cluster.