Johann Gottlob von Kurr
28 x 19 cm
Amalgam of silver and mercury from Moschel-Landsberg
, Germany (1), native mercury from Stahlberg, Germany (2), cinnabar from
Hungary (3), Spain (4) and Slovenia (5) with native copper from Michigan (6)
and Katharinenberg, Germany (7) with aggregated and branched copper (8), copper
glance (9-10), indigo copper or covelline (11), variegated copper or erubescite
(12-13), copper pyrites or charcopyrite (14-16) and tetrahedrite or grey copper
(17-20).

