Quartz jade is a type of jade composed of quartz minerals, also known as quartzite. It is mainly found in metamorphic, sedimentary, and intrusive rocks, formed through geological processes to create jade with beautiful colors and textures. The following is a detailed introduction to quartz jade:
Chemical Composition: The main component of quartz jade is silicon dioxide (SiO2), along with small amounts of metallic elements and impurities. Different combinations of these elements and impurities determine the color and texture of quartz jade.
Physical Properties: Quartz jade generally has a density of around 2.60 (±0.1) g/cm³, and high hardness, with a Mohs hardness of 6.5-7, second only to diamond and sapphire. Therefore, it possesses high wear resistance and corrosion resistance. Furthermore, it has a vitreous or greasy luster, a smooth surface, and a fine texture.
Appearance Characteristics: Quartz jade has high transparency, and can be classified as transparent, translucent, and opaque. It comes in a variety of colors, including white, green, purple, and red, satisfying the needs of different consumers. Its texture is fine, its luster is soft, and its feel is warm to the touch.
Types: Quartz jade comes in many varieties. Based on the degree of crystallization, grain size, and grain arrangement, it can be divided into three main categories: cryptocrystalline jade (such as agate, chalcedony, jasper, etc.), polycrystalline jade (such as aventurine, nephrite, Beijing white jade, etc.), and silica-replaced jade (such as tiger's eye).
