Which four ancient jades in China?

China's Four Great Ancient Jades:

China is an important jade-producing country in the world, which not only has a long history of mining, but also has an extremely wide geographical distribution and extensive reserves. According to the "Classic of Mountains and Seas", there are more than 200 jade-producing locations in China, and some famous jade mines are still being mined today, providing a steady stream of raw materials for the forward development of the art of jade carving in China. China's best-known jade is Xinjiang Hetian Jade, which is known as China's four great jades, along with Henan Dushan Jade, Liaoning Cuiyan Jade and Hubei Turquoise.

Hetian Jade

[Hetian Jade] Hetian Jade is found on the northern slopes of the Kunlun Mountains, which stretch for 1,500 kilometers in the Shadong-Tashkurgan, Hetian-Yutian, and Qimo counties of Xinjiang. The mineral composition of Hotan Jade is dominated by tremolite-actinolite, with traces of tremolite, serpentine, graphite and magnetite. It is characterized by its white, lime green, black and yellow hues. Jade is translucent and has a textured luster when polished, with a hardness of 5.5 to 6.5 degrees. Hotan Jade is found sandwiched between mountain rocks at altitudes of 3,500 - 5,000 meters above sea level. Jade pieces collected in riverbeds are called seed jade, and those mined in rock formations are mountain material. The economic value of Hotan Jade is assessed on the basis of the purity of color and texture.

The main varieties are: white nephrite, white nephrite, green nephrite, green nephrite, yellow nephrite, sugar nephrite, and ink nephrite.

Dokuroku Jade

[Dokuroku Jade] Dokuroku Jade is mined in the northern suburbs of Nanyang City, in the "Dokuroku Mountain", also known as "Nanyang Jade". Dolomite is a plagioclase jade, with a fine and pure texture, greasy or glassy luster, good polishing performance, transparent and more than three shades of multi-colored jade, colorful, hardness greater than 6.5. Varieties mainly include: white jade, green jade, green and white jade, purple jade, yellow jade, hibiscus red jade, nephrite, and miscellaneous jade. There is a long history of jade mining. The jade axe of the Longshan Culture of the Neolithic Age unearthed in Shimao, Shenmu, Shaanxi Province, and the "Dushan Jade Sea" of the Yuan Dynasty, which is on display in the Tuancheng of the Beihai Park in Beijing, were both made of nephrite jade. The mining of nephrite was already on a large scale in the Han Dynasty, and there are still more than 1,000 pits in Nanyang Dushan where nephrite was mined in ancient times, which shows that the mining of nephrite has a long history, and that the scale of the mining is so rich and abundant that it can be produced on a large scale to this day.

Cui Jade

[Cui Jade] Named for the main production area in Cuiyan County, Liaoning Province. It is formed in the metamorphic marble of magnesian carbonate rocks, and there are many deposits of this type of jade in China. It has a greenish, yellowish-green, and off-white color, is translucent, has a waxy luster when polished, and has a hardness of 3.5 to 5 degrees. Jade used in the Hongshan culture of the Neolithic period was produced in the Fine Jade Gorge in Xiuyan County, and is commonly known as Old Jade, a tremolite nephrite. Most of the jade found in the tombs of the Shang Dynasty is similar to that found in the Wagou mine in Xiuyan. The Wagou mine has a long history of jade mining and is rich in reserves. The Wagou mine has a long history of jade mining and is rich in reserves. It is the main jade mining area in China and accounts for about 60% of the country's jade production.

Turquoise [turquoise] Turquoise is one of the oldest jades, known as early as Ancient Egypt, where it was regarded as a mystery. Gansu Yongjing unearthed 3800 years ago, turquoise beads 20. Anciently known as "Jingzhou stone" or "Xiangyang Dianzi" turquoise is a cryptocrystalline mass of copper oxides. Or nodules, shades of blue, green and other colors, often containing iron lines, hardness of 5-6, waxy luster. Hubei produces high-quality turquoise, famous in China and abroad, and its handicrafts are very popular among the people, best-selling countries around the world.