Furnishes images and information on a wide variety of plutonic, volcanic and metamorphic rocks.

View an image of silicon atoms in a crystal, as captured by a scanning tunneling microscope. Access a description of the scanning technique.

View a time-lapse movie, made in the mid-1970s using the first scanning transmission electron microscope, of uranium atoms on a thin carbon film.

Electron microscope image gallery includes colored pictures of insects, human cells, parasites and marine animals.

Browse a solid assortment of full-color photomicrographs, including shots of beer, drugs and pesticides.

Features for learners include a virtual electron microscope and instructions on conducting simple experiments.

International Metallographic Society offers a gallery of images revealing the microstructure of various metals.