Tsumeb is well known for its amazing copper mineral combinations. Bright green bayldonite pseudomorphing mimetite serves as a matrix here, covered by at least 3 more unidentified greens, and sharp, lustrous azurites partially altered to malachite are perched atop. Very 3-dimensional and displayable all the way around. No damage. Ex A.Berger (Wien-Mödling) and Krantz (Bonn) collections, the Berger-label is coming with the piece.