This #VolcanoThursday something special😻 On the picture a #rock called #restingolite after #LaRestinga on #ElHierro. These rocks were floating on the #ocean after a #eruption but are not volcanic. Its a frothed up #sedimentary rock. The H2O in the rock was evaporated by #magma

#geology #geologywitgcats #volcano #catsofmastodon