Pele’s Hair, a byproduct of volcano eruptions, are thin glass fibers “named after the volcanic deity Pele,” according to the National Park Service. Piles of the long, hair-like fibers can be found near volcanic summits in Hawaii. The fibers resemble “golden mats of hair,” the park service says on a page about the phenomena. Strands of Pele’s Hair can stretch up to 2 feet in length but are less than a micron, or .001 millimeters, wide. They are light enough to be picked up and carried by the wind. Pele’s Hair can form mats up to several inches deep. The...