Moldavite tektite

Lacquer print from the wall of a quarry in Dřenice near Cheb in West Bohemia (Czech Republic). It is a river sediment, probably of Pliocene age. The rusty part is discolored by limonite and goethite. Rarely moldavites occur in it. The black part is discolored by psilomelane. 56 cm x 56 cm.