Quartz is a naturally occurring mineral commonly found in many types of rocks. This includes the igneous, metamorphic, and sedimentary rocks you probably learned about in your high school science class.
Because quartz is a very hard material, it does not erode like the surrounding rock material. As a result, over time the rocky material erodes and leaves the quartz behind. You’ve probably seen this before. Most white sandy beaches are made of quartz eroded out of rock.
Where does natural quartz come from?