Hawai‘i Volcanoes 2016

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Reticulite and Pele's hair. Reticulite is basaltic glass frothed so much that adjacent bubble walls are gone, leaving a spongy network where three bubbles were adjacent. Due to its high permeability it sinks in water, as Don demonstrates. Pele's hair forms as droplets of glass fall from the air.

All images copyright © 2016 F.W. Vollmer and may not be used without permission.