Lushan Dayuhai and its jade source

The Yushan Da Yuhai is now housed in the Yubei Pavilion of Beijing Beihai Mission City. It was originally built in the Yuan Dynasty to the Yuan Dynasty (AD 1265). It was the wine ware of the Emperor of the Yuan Dynasty when he banqueted the ministers. The second modification is the earliest and largest jadeware in the world that is only seen today. Yuhai is 70 cm high, with a diameter of 135-182 cm and a maximum circumference of 493 cm. It weighs 3,500 kg. The jade sea body is oval and empty. In vitro, the sea embossed the sea and the sea dragon, seahorse, sea pig, sea deer, sea rhinoceros, conch and so on. In the 膛 则 则 则 则 则 则 光 光 光 光 光 光 光 光 光 光 光 光 光 光 光 光 光 光 光 光 光 光 光 光 光 光 光

The shape of the Yuhai is thick and simple, and the imposing manner is exquisite, exquisite and refined, with strong artistic appeal. But where does the jade from Yuhai come from? This problem has been confusing because of the lack of records of ancient books. Yang Hanchen et al. (1985) believed that it was carved out of Xinjiang jade, but the author's research denied this. The author believes that Yuhai jade material originates from the Dushan of Nanyang, Henan Province, and is a kind of variegated Dushan jade, a kind of generalized jade. The reasons are as follows:

1. Yuhai jade is mostly mixed with cyan and blue and white, with black patches in the cyan, plaque or stripe white in the few parts, and black spots in the white, on the texture of the shrimp spots. Slightly revealing the reflection of lavender. Fine texture, hard and compact, glass luster, micro-transparent - to opaque, poor overall transparency. The main constituent minerals are plagioclase and zoisite, epidote, and also contain a certain amount of biotite, tremolite and diopside. Among them, plagioclase, zoisite, and epidote are related to dark cyan, and biotite is related to black plaque or spots, while tremolite and diopside are related to white plaque or streaks, indicating jade The formation is subject to strong metamorphism. It is obvious that Yuhai jade is a Dushan jade of variegated altered gabbro.

2. Da Yuhai's title is “Lushan”, which is the homonym of “Dushan”, which is rich in Dushan jade in Nanyang County, Henan Province.

3. Dayuhai weighs 3,500 kilograms and the weight of the raw materials is twice that. It is not easy to transport such a huge jade from Nanyang to Beijing at least 800 kilometers. If it is transported from Xinjiang to Beijing at least 3,500 kilometers, this is hard to imagine in the Yuan Dynasty.

4. Xinjiang green jade is produced in Maras, the color is lively and bright, the gloss is moist and shiny, transparent to translucent, and the overall transparency is higher, which is obviously different from the jade used in Yuhai. Dushan jade (that is, bad fossil), Hetian jade (ie nephrite) and Xiuyan jade (ie Bao Wenshi) are also called China's three major jade. Although it is said that the Western Han Dynasty had the production and sale of Dushanyu's "Jade Street Temple" in the foothills of the Western Han Dynasty, several pieces of jade shovel, jade chisel, jade, etc., which were like the Longshan culture period, were unearthed in Huangshan Mountain of Nanyang County. The development and utilization is rarely mentioned in Chinese historical records, which constitutes a mystery in the history of Chinese archaeology. However, Daishan Dayuhai provided evidence of a large-scale processing and utilization of Dushan jade as a jade in the Yuan Dynasty.

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