1. Lantianyu: Produced in Lantian County, Shaanxi Province. Lantian jade has a yellow, light green color and is opaque with a hardness of 4 degrees Mohs. It is a serpentine type of diopside. Lantian jade has a long history of mining. It is found in Han Shu, Zhang Heng and Ban Gu. There are still jade mines. Due to the small amount of production, after the Han Dynasty, Hetian jade was used as a jade material. Therefore, the mining and application of Lantian jade has gradually lost. In the Ming Dynasty, Song Yingxing said in the "Tiangong Kaiwu" that Lantian is an alias for Congling (Kunlun Mountain), and Lantian is inferred for storing and transporting jade land. The geological department has inspected Lantian jade, which is still being mined. According to the research of Yi Bingzhen, vice president of the Gemological Association, the large-scale "beast-faced jade auxiliaries" unearthed near Maoling, Xianyang, Shaanxi Province, was produced by Lantian jade. It is known that the origin of Lantian Meiyu, which was praised by the Han and Tang Dynasties, was near the capital.

2. Nanyang Jade: The mining area of ​​Nanyang Yu is located in Dushan, also known as "Dushan Jade" and "Duoyu". Nanyang jade is a plagioclase jade with fine texture, pure, grease or glass luster, good polishing performance, transparent or micro-transparent. The hardness is 5.5 to 6.5 degrees. Nanyang jade is a multi-color jade. Commonly used for two or more tones composed of multi-color jade, bright colors, respectively: water white jade, white jade, black white jade, green jade, green white jade, sky blue jade, jade, sapphire, purple jade, bright brown jade, topaz , Huang Rongyu, Moyu and variegated jade. Nanyang jade has a long history of mining. The Neolithic Longshan culture jade axe unearthed from Shenmu Dendrobium in Shaanxi, the Yinxu jade found in 1952, and the jade found in the 1976 Women’s Tomb have found the example of Nanyang jade as jade. It is now displayed in the Beihai Mission City, the Yuan Dynasty Daishan Da Yuzhen, also used in Nanyang Yuxi. According to the literature, the mining of Nanyang jade has been quite large in the Han Dynasty. Up to now, there are more than one thousand ancient jade mines on the Dushan Mountain. It can be seen that Nanyang jade has a long history and a large scale. Nanyangyu's reserves are quite abundant, and it can still form scale production.

3, Jiuquan jade: produced in the Qilian Mountains of Gansu, because there is also the city of Qilian jade. It is a serpentine jade. Translucent, mostly green, with even black spots. The hardness is from 4.5 to 5 degrees. The mining history of Jiuquan jade can be traced back to the Neolithic Age. The exquisite jade of Qijia culture unearthed from the Wuwei Niangniang site is made of Jiuquan jade.

4, Xiuyan jade: Because the main producing area is named after the Xiuyan in Liaoning, also known as jade jade. The picture of the jade species is serpentine, which is formed in the metamorphic marble of magnesia carbonate. There are many deposits in this geological environment in China, so the origin of the jade is very wide. The appearance of the jadeite is blue-green and yellow-green. Translucent, waxy after polishing, hardness of 3.5 degrees to 5 degrees. The jade material used in the Hongshan culture of the Neolithic Age is produced in the fine jade ditch of Xiuyan, commonly known as the old jade, which is a tremolite nephrite. Most of the jade materials excavated from the Shang Dynasty Women's Tomb are similar to the Xiuyan Wagou minerals. The Wagou Mine has a long history of mining and abundant reserves. For China's current main jade mining area, the output accounts for about 60% of the country.

5. Hetian jade: It is distributed in Xinjiang Shache--Tashkurgan, Hetian--Yuyu, and the 1,500-kilometer-long northern slope of Kunlun Mountain in Qiemo County. There are nine production areas. The mineral composition of Hetian jade is mainly composed of tremolite-yangshi. It contains traces of diopside, serpentine, graphite, and jade. Different colors such as white, cyan, black, and yellow are formed. Most are monochromatic jade, and a few have variegated colors. The jade is translucent and has a greased luster after polishing with a hardness of 5.5 to 6.5 degrees. Hetian jade is born in a mountain rock with an altitude of 3,500 meters to 5,000 meters. After long-term weathering and stripping into pieces of different sizes, it collapses on the hillside and then flows into the river through rainwater. When the autumn river is dry, the jade collected in the riverbed is called seed jade, and the mountain material mined in the rock formation. The earliest jade articles of the era that have been discovered with Hetian jade are from the tomb of Yinxu Women. After the Spring and Autumn Period and the Warring States Period, Hetian jade gradually became the main jade material, both of which collected seed materials, and began mining mountain materials in the Qing Dynasty. During the Qianlong period of the Qing Dynasty, the Dagu River was controlled by Yushu, and the jadeite material weighed more than 10,700 kilograms, which was collected from the Milareta Mountains.

Due to the variety of jade, there are different classifications in mineralogy, history and archaeology, as well as China's understanding of the "beautiful stone". In addition to mineralogy, the classification of jade is not only complicated but also vague, and its variety is also victorious. enumerate.

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