Table of Contents (click to expand)Sand Is Made From Eroded RockSand Is Made From The Skeletons And Shells Of Marine LifeSand Is Made From Parrotfish PoopSand Is Made Of Organic MatterGlass Beach, California Is Made From Garbage Sand is made of rocks eroded by rivers, the skeletons and shells of invertebrates, as well as calcium carbonate from parrotfish poop! No one pays attention to sand. Sure, we go to the beach and use the sand to make castles, and or as a backdrop to fuel our Instagram with summer time scenes, but how often do we really think about it? … Continue reading What Is Sand Made Of?