Quartz lumps are typically formed through the crystallization of silicon dioxide in hydrothermal veins, geodes, or pegmatites. They are composed of tightly packed quartz crystals that have grown together, resulting in a solid mass with a rough and uneven surface. The lumps can vary in color, ranging from transparent to translucent and may exhibit different shades such as white, gray, brown, or even pink.
Quartz lumps have several industrial and commercial applications due to their physical properties. They are known for their hardness, durability, and resistance to chemical weathering, making them highly valued in various industries.