Unearthed, LLC on Instagram: "Did you know that rocks could fly? 🌋 These “Volcanic Bombs” literally fly through the air after getting blasted from a volcano! What makes these stones so special are the gorgeous green crystals found inside. This mineral called Olivine (gem name Peridot) forms at some of the hottest temperatures inside our Earth. During explosive volcanic eruptions, this material sometimes gets ejected from the volcano. As it flys through the air, it twists and cools creating some