Manganese Dendrite Plaque from Solnhofen, Germany featuring dendrites on both sides. Although it resembles a plant fossil, it is a crystallized manganese oxide deposit in a natural dendritic pattern. Approx. 4 1/8″ H x 5 3/4″ W x 1/4″ D. Please click photo for view of other side. Need a stand? We have a large selection of display stands here. *Display stand not included.