Calcite - Elmwood Mine, Tennessee, USA
 
Numerous up to 8 cm long scalenohedron twins of best quality and transparency on matrix. On the reverse side is also a single especially clear crystal, 1.8 cm in size.
The Elmwood Mine near Carthage in the U.S. state of Tennessee is one of those localities, which evokes an immediate association with a certain type of mineral among collectors. In this case, scalenohedron twin calcites with the distinctive gold cognac color appearance.