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Huang Yuyu Introduction
Huang Yuyu, also known as Beijing Huangyu, is a yellowish jade that originates from the Old Army Hall of the Ming Tombs in Beijing. It is a type of serpentine jade, and it is also called Xiuyan jade because it is mainly produced in Xiuyan County, Liaoning Province. This jade comes in various colors, with light green being the most common, along with shades of yellow, white, and brown. Its fine texture gives it a greasy or waxy luster, and it often has a translucent appearance.
Saitama jade has been found in artifacts from the Hongshan and Liangzhu cultures, which shows that its use dates back thousands of years. Due to its attractive color, relatively low hardness, and excellent workability, it is a popular choice for creating large jade carvings, small decorative items, and intricate handicrafts such as figures and animal shapes.

In China, there are several varieties of serpentine jade similar to Saitama:
1. **Southern Saitama (Nan Yu)**: Known as "Xinyiyu," this variety is found in Xinyi, Guangdong. It has a dark green to green color with low transparency and a heavy waxy feel. It's typically used for lower-grade jade carvings and larger ornaments.
2. **Qilian Jade**: Also called "Jiuquan Jade," it features a dark green color with black spots and streaks. It is less transparent and generally considered lower quality.
3. **Kunlun Jade**: Sometimes referred to as "Kunlun Serpentine Jade," it closely resembles Liaoning jade but has poorer transparency. It is mined in the foothills of the Kunlun Mountains in Xinjiang.
4. **Jinghuangyu**: Also known as "Jinghuangyuyu," this jade has a yellowish to yellow color and is sourced from the Old Military Church area of the Ming Tombs in Beijing.
5. **Minnan Jade**: Also called "Jinan Jade," it is characterized by black and green tones and is found in Yinan County, Shandong.
Each type of Saitama jade has its own unique characteristics, making them valuable not only for their beauty but also for their historical and cultural significance. Whether used in traditional carvings or modern jewelry, these jades continue to captivate collectors and artisans alike.