First, the statement

The national standard GB/T16552-1996 "Jewelry and jade name" in the name of "Yuyu", specifically refers to the Xiuyan jade with the concept of local name.

Xiyu is produced in Hadabei Town, Xiuyan Manchu Autonomous County, Liaoning Province, 21 kilometers away from the county seat, and is distributed in the area of ​​Beiwagou and Wangjiabaozi.

In 1992, Hada Monument found a piece of 260.76 ton of jadeite, which was transported to Anshan City. In October 1995, it was carved into a jade Buddha with exquisite craftsmanship. In 1996, Anshan Yufoyuan, which covers an area of ​​20,000 square meters, was officially completed. Become a famous tourist landscape. On June 18, 1996, a half-slope of Wagou Mountain in Wagou Village, Hadabei Town, was found to have a height of 25 meters, a maximum diameter of 30 meters, a volume of about 24,000 cubic meters, and a weight of about 60,000 tons. The largest jade found.

The jade pebbles in the river are called river mill jade, which is a jade material with a quality left. Recently, a huge jade jade river jade was found, measuring 0.51×0.42×0.72 m, weighing 123 kg, green transparent-translucent.

Second, the past generations of jade

According to archaeological discoveries, the Xiuyan area has human activities in the Paleolithic period dating from 12,000 to 20,000 years ago. The jade ancient jade ware of the Hongshan Cultural Site in the Neolithic period from 4000 to 5000 years ago, Jianping County, Liaoning Province Unearthed "Jade Pig Dragon", the "Jade Hook Dragon" unearthed from the Samsung Tara Village in Wengniute Banner, Inner Mongolia, and the primitive society "Hook Cloud Shaper" are represented by Daiyu. The jade and jade artifacts left in the past are very rich. In the Xia, Shang and Zhou Dynasties, the "birds and beasts, jade, jade, and jade", the "animal jade" of the Warring States period, the "Jade evil spirits" during the Qin and Han Dynasties, and the Eastern Jin Dynasty "The leading turtle button Yuyin", the "beast-shaped jade town" in the Southern and Northern Dynasties, the "beast-shaped jade cup" in the Tang and Song Dynasties, the "Yu Guan-ear bottle" in the Yuan Dynasty, the "leading jade cup" in the Ming Dynasty, and the "Yuyu jade" of the Qing Dynasty Xian". In 1968, 2,498 pieces of jade jade "Jinyu Yuyi" unearthed in the Han Tomb of Mancheng Mountain in Hebei Province, two pieces of jade jade articles of the Xiajiadian culture collected by the Beijing Museum, "Jade Jade Pepe" and "Sapphire Birds" Handle". The jade artifacts of the Liangshi culture in the Neolithic Age unearthed in Jiangsu and Zhejiang, and more than 700 jade artifacts unearthed from the tomb of the Yinxu Women's Tomb in Anyang. According to legend, the Qing Dynasty Emperor Taiji engraved the emperor of the Emperor Fengtian, the Emperor Qianlong engraved with The jade of the National Treasures of the Treasures of the DPRK is made of jade jade.

Third, the geological output characteristics of Daiyu

The Dashiqiao Formation in the Liaohe Group of the Lower Proterozoic in the Liaodong area is characterized by the construction of thick dolomite marble. The original rock series is composed of marine magnesium-rich carbonate deposits with a thickness of 392-604 m. The jade is mainly produced in three sections. The middle-upper, ore-bearing rock series are also dolomitic marble, tremolite dolomitic marble, magnesite rock, talc, tremolite, and calcite marble.

During the Mesozoic period, due to the crustal uplift of the crustal movement rock strata, accompanied by the intrusion of magmatic rock mass, a large amount of hydrothermal fluid containing SiO2 permeates along the interlayer structure, and the main metallogenic belt of Saitama occurs in the dolomitic marble and magnesite. In the rock, it is a hydrothermal alteration product.

Fourth, the mineral rock of Saitama

1. Mineral combination:

Leaf serpentine, fiber serpentine, serpentine, talc, magnesite, tremolite, calcite, dolomite, quartz, chlorite, brucite, limonite, hydromica.

2. Mineral parameters:

Leaf serpentine

Composition: Mg(OH)8Si4O10

Crystal system: oblique

Light: 2V (-) 20-90 °

Np=1.555-1.564

Nm=1.562-1.573

Ng=1.562-1.575

C/Z: b// Nm,c// Np,a// Ng

Ng=light green, Nm, Ng=colorless, light yellow green

{001 }complete

Crystal form: flake

H=3.5, D=2.5

Fiber serpentine

Composition: Mg6(OH)8Si4O10

Crystal system: oblique?

Light: 2V (+) 10-90 °

Np=1.542, 1.532-1.552

Nm=1.543

Ng=1.555, 1.545-1.561

C/Z: b// Nm,c// Np,a// Ng

Ng = yellowish green, Nm, Ng = colorless, light yellow green

{011}poor

Crystal form: flake

H=2.5, D=2.4

Colloidal serpentine

Composition: Mg6(OH)8Si4O10

Crystal system: amorphous

Light: 2V (+) 10-90 °

N=1.500-1.570

Crystal form: gelatinous, surrounded by serpentine leaves

5. The rock characteristics of the jade jade

1. Altered serpentinite

The microscopic scale fiber has a crystal structure, and the serpentine crystal is microscopic scale-like, oriented or disorderly distributed, and the local fiber serpentine is dense. In the periphery of the serpentine, sometimes the cryptocrystalline serpentine is distributed. The serpentine content is also 98%. The rocks are mostly green, yellow, yellow and green, with high transparency and waxy luster.

2. Altered tremolite serpentinite

The microscopic scale fiber has a crystal structure, and the serpentine crystals are microscopic scales, oriented or disorderly distributed, and the local fiber serpentine is dense. The tremolite around the serpentine is sometimes bundled and fibrous, sometimes dense. , sometimes evacuated, yellow, green and yellow, green mixed, opaque - translucent.

3. Altered magnesite serpentinite

The microscopic scale fiber has a crystal structure, and the serpentine crystal is microscopic scale-like, oriented or disorderly distributed, and the local fiber serpentine is dense. There are residual magnesite in the serpentine, and the diamond-shaped residual crystal can be present. Structure, color yellow, green and yellow, green mixed, opaque - translucent.

4. Altered dolomite serpentinite

The microscopic scale fiber has a crystal structure, and the serpentine crystal is microscopic scale-like, oriented or disorderly distributed, and the local fiber serpentine is dense. There are residual dolomite in the serpentine, and the diamond-shaped residual crystal structure can be present. , color yellow, green and yellow, green mixed, opaque - translucent.

Six, Saitama folk jade

Green jade: Green is single, the texture is warm, crystal, delicate, strong, and transparent. It is an excellent material for making jade bracelets.

Topaz: The yellow color is simple, the texture is warm, crystal, delicate, strong, and transparent. It is an excellent material for making jade bracelets.

Ink: The black single pure black block is rare, the texture is warm, crystal, delicate, firm and opaque, making small pieces of jewelry.

Brown jade: brown is single and less, mostly light brown, light yellow brown, fine texture, firm and opaque, making small pieces of jewelry.

Flower jade: light green, green, dark green, yellow, yellow green, black, light brown, light yellow brown, gray and white mixed with each other, or one or two colors.

Seven, Chinese serpentine jade

1. Southern Jade: Produced in Xinyi County, Guangdong Province, the color is green and light.

2, Kunlun jade: produced in the western section of Kunlun, Xinjiang, the color is dark green, yellow green.

3, Longxi jade: produced in Wenshui County, Sichuan, color green, yellow green, brown green.

4, Huili jade: produced in Huili County, Sichuan, color green, yellow green.

5, Qilian jade: produced in the Qilian Mountain area of ​​Jiuquan, Gansu, the color is dark green.

6, black green jade: produced in Xixia County, Tongbai County, Luanchuan County, Xinyang County, color yellow green, white, brown, gray black, light green, mineral composition is mainly serpentine, ultra-basic rock alteration .

7. Lu Chuanyu: Produced in Guangchuan Luchuan County, the color is light yellow green, light yellow white, green, dark green, produced in Guangchuan County.

8, from Jiang Yu: produced in Congjiang County, Guizhou Province, the color is dark green, the mineral composition is mainly serpentine, ultra-basic rock alteration.

9. Jinghuangyu: Produced in the Ming Tombs of Beijing, the color is light yellow-green.

10. Minnan Yu: Produced in Luannan County, Shandong Province, the color is black, black and green.

11. Dulanyu: Produced in Dulan County, Qinghai Province, the color is black, black and green.

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