Diatom are single-celled photosynthetic organisms, one of several groups of algae that biomineralize silicate. They inhabit both fresh and marine water. Deposition of the silicate creates rigid cell walls which can take on a complex variety of geometric shapes. In victorian times, hobbyists and enthusiasts would create arranged slides, microscopic pictures only a millimeter or two across, made out ofContinue readingDiatom Art