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#scoria #black rock #vesicular rock #igneous rock #porous #lava rock

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#pumice #porous rock #light rock #floating rock #volcanic rock #igneous rock #vesicular rock

🌋🫧🪨

#pumice #vesicular rock #porous rock #lightweight rock #floating rock #gas bubbles #extrusive rock

🪨🫧🌊

#floating rock #porous stone #volcanic stone #lightweight rock #vesicular rock