A close-up of Pele's hair from Kīlauea's summit lava lake. X-ray d...

A close-up of Pele's hair from Kīlauea Volcano's summit lava lake. X-ray diffraction analyses of the Pele's hair (basaltic glass) collected today will provide information on the mineralogy of Kīlauea lava, which, in turn, can shed light whether the magma supply to the volcano is constant or is changing. The accumulation of Pele's hair downwind of Halema‘uma‘u Crater is the focus of HVO's October 20, 2016, "Volcano Watch" article (https://volcanoes.usgs.gov/observatories/hvo/hvo_volcano_watch.html?vwi…), which includes a description of how it forms and additional photos.