Yellow Wax Stone

Yellow Wax Stone

　　Belonging to silicified andesite or sandstone, its main component is quartz. The oily, waxy surface layer is a low-temperature melt, exhibiting strong toughness and a hardness of 6.5 to 7.5. Due to the incorporation of different minerals during its geological formation, it comes in varieties such as yellow wax, white wax, red wax, green wax, black wax, and colorful wax. Furthermore, depending on the purity of its silicon dioxide, the size of its quartz particles, and the condition of its surface fusion, it can be further classified into frozen wax, crystal wax, oily wax, glue wax, fine wax, and coarse wax. Frozen wax can even allow light to pass through to the stone’s core. Yellow Wax Stone (yellow wax stone) is most commonly seen in yellow hues, with pure, bright yellow being the most prized. Other colors include wax yellow, earth yellow, chicken fat yellow, egg yolk yellow, ivory yellow, and orange yellow. It is primarily found in the Guangdong and Guangxi regions, where the stone color is especially pure.

　　Stone Collectibles

　　　　Yellow Wax Stone is a widely popular stone collectible in the Lingnan (southern China) stone appreciation community. It is among the hardest and most compact in traditional stone appreciation, with larger pieces ranking alongside the four famous ornamental garden stones, though its texture is slightly coarser. Smaller pieces can rival the king of seal stones, Tianhuang, in smoothness and fineness—outshining jade in quality. With prolonged handling, a lustrous patina develops, giving the stone a vibrant vitality and making it an excellent choice for collectors.

　　Composition

　　　　 Yellow Wax Stone

　　Yellow Wax Stone was first discovered in the Kingdom of Zhenla (modern-day Cambodia), hence the name “La Stone” (wax stone). Another theory suggests it is named for the wax-oil-like glaze that appears on its surface. In geology, Yellow Wax Stone is a type of quartzite, with quartz as its primary component. It is very hard, with a Mohs hardness of around 7, and also highly resilient and stable. Its surface has an oily, wax-like texture, while the inner core visible in cross-section is mostly pale or yellowish-white, milky quartz particles. The waxy feel comes from the quartz itself, while the coloration results from the oxidation of surface iron elements. Yellow Wax Stone is the most common type of La Stone. It forms when quartzite is broken apart by geological shifts, rolls into acidic soil, and undergoes prolonged low-temperature erosion by acidic substances, resulting in a waxy glaze on its surface. Some pieces, carried away by flash floods, roll into mountain streams, are transported by river water into larger rivers, and over the years are smoothed and polished by the current and gravel. They develop a slick, glossy surface and, through prolonged exposure to various mineral elements in the water, take on a variety of colors.