BSE image showing groundmass, with glass, plagioclase, pyroxene, and oxide microlites. The scale bar is absent here, but the image was collected at 400 X, compared with 100 X from image 17485.
Image courtesy of the AVO/UAF-GI.
Please cite the photographer and the Alaska Volcano Observatory / University of Alaska Fairbanks, Geophysical Institute when using this image.
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