the world’s largest quartz crystal cluster was discovered in 1985 at the bottom of a 45-meter-deep cave in the Otjua mine near Karibib in Namibia. It weighs 14,100 kilograms and took three to five years to excavate and remove13. It is now on display at the Kristall Galerie, a gemstone museum in Swakopmund, Namibia.
Quartz is a mineral that is made up primarily of silicon dioxide and has many varieties, such as amethyst, citrine, smoky quartz, and rose quartz. Quartz crystals have a hexagonal shape and can grow in different environments, depending on the temperature, pressure, and chemistry of the region3. Quartz is also widely used in electronics, watches, radios, and other devices.