EntityQ2552055· pop 6· linked from 123 articlesvesicular structureSign in to savesmall enclosed cavity found in some volcanic rock, such as basaltConnectionsamygduleEntityvolcanoEntityrockEntityTenerifeEntityWayback MachineEntitymagmaEntityquartzEntityigneous rockEntitybasaltEntitycalciteEntityvolcanologyEntityLa PalmaEntitypumiceEntityandesiteEntitychalcedonyEntityolivineEntityzeoliteEntityscoriaEntityaphaniteEntityextrusive rockEntityCategoriesVolcanology