Description: Right side: relief of Ignatius Dameika. Left side: a geological hammer and an inset of a stone resembling dameikite with its chemical formula (on the copper-nickel coin, mountains replace the inset). Below left: "IGNATIUS DAMEIKA 1802–1889". Below right: a segment of the Andes mountain chain named in his honor, with the inscription "CORDILLERA DE DOMEYKO".
Inscription: Cu3As
IГНАТ ДАМЕЙКА 1802 1889
CORDILLERA DE DOMEYKO
Translation: IGNATIY DOMEYKO 1802 1889
CORDILLERA DE DOMEYKO