Indexed MicroMeshes™ - 300 or 400 μm mesh areas with 25 μm openings. Index marks and numbers make it easier to locate (and then to relocate) a given sample. Identify the most promising samples on your home microscope, and then easily find them again, e.g., at a microfocus X-ray source. Additional diagonal tabs allow the front/back orientation of the mesh and a crystal's position on the mesh to be uniquely determined in only a 100 μm field of view. Crystals can sometimes be more clearly seen in the larger square openings of the 400/25-IN2 design. The flat top of the 300/25-IN1 design makes it easier to scrape/scoop samples off of the bottom of a well or slide.