Fluorite, Sphalerite
Elmwood mine, Carthage, Central Tennessee Ba-F-Pb-Zn District, Smith Co., Tennessee, USA
Small Cabinet, 8.9 x 8.9 x 3.9 cm
Glowing crystals of purple fluorite ring a rich mass of crystallized sphalerite, the zinc ore that was the focus of mining at the Elmwood for decades before it closed maybe 5 years ago. The fluorites measure to 1.7 cm along the edge. You can see how the deep coffee-colored sphalerite has formed large euhedral forms on the surface of which are hundreds of small, complex sub-crystals.