Heavy sand refers to sand that contains a higher concentration of dense minerals, such as magnetite, ilmenite, and zircon. These minerals are heavier than the typical quartz found in regular sand, making heavy sand useful in various industrial applications, including construction and mineral extraction. Heavy sand is often found in specific geological environments, such as riverbeds, beaches, and coastal areas where erosion has concentrated these dense materials. It is commonly used in the production of concrete, as well as in the manufacturing of ceramics and glass, due to its unique properties and strength.