Description
Brass yellow, sharp and twisted Chalcopyrite crystals up to 0.6 cm, partly with faint reddish patina are perched on matrix which is typical Quartz-Calcite veins of the active Gneiss quarry Artenberg. Under the microscope one can see tiny black Fahlore crystals on Chalcopyrite. A piece from a find from the 1980s from a working quarry which can only be accessed with permission from the owner.