Clacite, Dolomite, Chalcopyrite - Sweetwater Mine, Missouri, USA
 
 4.1 cm long double terminated calcite with hexagonal prisms and good transparency. The very aesthetic piece comes from the Sweetwater Mine in Missouri. The double terminated crystal sits on a matrix of dolomite with chalcopyrite crystals up to 6 mm in size.
 Characteristic for the locality this piece convinces with a good luster and a golden-yellow color of the calcite. Size 9.3 cm x 4.7 cm