human
I want to learn more about the different types of sand.
assistant
The type of sand you are referring to is called quartz sand, which is composed of tiny grains of quartz crystal that are typically between 0.1 and 2 mm in diameter. Quartz sand is a sedimentary rock formed by the erosion of quartz crystals from rocks. It is commonly used as a construction material because it is strong and durable, and it can be molded into various shapes.