Quartz is a mineral composed of silicon dioxide (SiO2) and is one of the most common minerals found on Earth. It is a hard, crystalline substance that occurs in a wide variety of colors and forms. Quartz is classified as a member of the trigonal crystal system, possessing a hexagonal prism shape with pyramidal ends.
In its purest form, quartz is colorless and transparent, known as rock crystal. However, impurities in the mineral give rise to its wide range of colors, including pink, purple, yellow, brown, and even black. The variations in color are due to the presence of other minerals or elements during its formation.
Quartz is renowned for its durability and resistance to chemical weathering, making it a valuable material in various industries. It is commonly used in the production of glass, ceramics, electronics, and watches due to its ability to transmit and control heat, electric current, and light.
The mineral's natural beauty and exceptional hardness have also made it a popular gemstone for jewelry. Varieties of quartz frequently used as gemstones include amethyst, citrine, rose quartz, and smoky quartz.
Quartz is found in abundance worldwide, occurring in igneous, metamorphic, and sedimentary rocks. Large deposits can be found in countries such as Brazil, the United States, India, and Madagascar. Its widespread occurrence and versatile properties have earned quartz a significant role in various industries and a place among the most sought-after gemstones.
