Vinnie come on we’re going to be late okay class what about this one does anybody know what this is anybody yes Benjamin can you identify this rock it’s obsidian obsidian that’s right do you know how it was made well it was formed after volcanic eruption by the super cooling of the lava when it hits the water Vol Cano erupts and the lava flows down red high and so when it hits the water the elements cess and since that water is cold the air is forced out and the surface glazes over and the lava