Quartz’s unique properties, such as its chemical composition (SiO2), hexagonal shape, and Mohs hardness of 7, make it highly durable and suitable for industrial applications. It also exhibits optical characteristics like transparency and a refractive index of 1.54, making it valuable for optical lenses. Additionally, quartz’s piezoelectric properties make it useful for electrical devices. Geologically significant, it is found in various rocks alongside minerals like feldspar and mica, and its impurities and trace elements give rise to a wide range of colors.
