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VolcanicGlassFrothyStructures — Description
Detail of the intricate structures in a piece of volcanic tephra (frothy, fragile volcanic glasses) from the 2018 Kilauea eruption. Note the 3-D lacework of glassy strands that makes up the framework of the rock. It's mostly air, however... Image created in Focus Stacker from 4 frames. Pentax K-50 w/ Tamron 90mm Macro.