Calcite on Sphalerite
Elmwood Mine, Smith County, Carthage, Tennessee, USA
Cabinet, 10.3 x 10.1 x 6.3 cm
A gemmy, twinned, doubly terminated, ivory colored calcite crystal, measuring 8 cm across is perched on a limestone matrix covered in a druse of calcite and black sphalerite. The underside of the upper termination (pointing back and away from the viewing face) has a very minor cleave but it is otherwise pristine. Dramatic display on a matrix that is unusually sparkly as it is coated by minute calcites and sphalerite druse.