Backscattered electron micrograph of a polished cross section of a core sample. The large rounded grains are quartz and potassium feldspars, with the former being darker gray. The dark splintery shapes at the top left are pieces of organic material. Aquamanile in the Form of a Lion, probably northern Germany, ca. 1200, H. 21.2 cm (Metropolitan Museum of Art, The Cloisters Collection, 1947, inv. 47.101.52). See Dandridge, Pete. 2006. “Exquisite Objects, Prodigious Technique. Aquamanilia, Vessels of the Middle Ages.” In Lions, Dragons, and Other Beasts: Aquamanilia of the Middle Ages, Vessels for Church and Table, edited by Peter Barnet and Pete Dandridge, 35–56. New Haven, CT: Yale University Press..