This technique allows you to see the surface of just about any sample, from industrial metals to geological samples to biological specimens like spores,
hazelnut, (genus Corylus), also called filbert, cobnut, or hazel, genus of about 15 species of shrubs and trees in the birch family (Betulaceae) and the
One cause of chatoyance is the tree being under stress as it grows, causing the grain to curl back on itself. This results in an effect that basically looks