Photomicrograph of faceted, bubble-bearing melt inclusion (~65 x 53 µm) in pyroxene from Mount Edgecumbe rhyolite sample 82ARj136. Crystal picked from 250-500 µm size fraction of crushed lapilli-sized pumices.
Image courtesy of AVO/USGS.
Please cite the photographer and the Alaska Volcano Observatory / U.S. Geological Survey when using this image. Full Resolution.