It has always been felt that Russian jasper is better than Tian Biyu. Although the hardness is not as good as the latter, the former has less cracks, less black spots, and the color is more beautiful. It has become the mainstream of jasper in the market, and the other two famous jasper are Canadian jasper and mana. Sibiyu.
Russian Jasper
Russian jasper is a kind of jasper, which is mainly distributed in the Irkutsk region, the Kraskarsk region, the Ural Mountains, and the Siberian mines. The main mineral composition is the homomorphism of tremolite and actinolite, accounting for 69-95%; the minor minerals are diopside, serpentine, chlorite, talc, magnetite to form black spots. . Due to its physical properties and internal structure, Russian jasper is in full compliance with the identification of nephrite (Hetian jade), so they are all veritable nephrite.
A large part of the "jewelry grade" jasper has reached the emerald green color, the texture is fine, the oil is good, the luster, the color is soft and moist, the texture is delicate, and the color is solemn. These jasper are made into a large number of bracelets, beads, and handles to make up for the lack of high-quality jasper in China. At present, Russian Jasper is the main raw material used in Jasper in China. At present, the jasper of large shopping malls, antique market, and jewelry jade shops are all Russian jasper. Do not think that Russian white jade is not as good as Tian Baiyu. On the whole, the color of Russian jasper is better than that of Hetian Biyu.
Hetian Biyu
Hetian Biyu is produced in the peak of 3,500 to 5,000 meters north of Kunlun Mountain, and Hetian Biyu is a kind of Hetian jade. Hetian jade is a kind of nephrite, commonly known as true jade. The jade in the narrow sense generally refers to Xinjiang Hetian jade. English name Nephrite. The chemical composition is an aqueous calcium magnesium silicate having the chemical formula Ca:Mgs(OH)z(Si4011)2. The hardness is 6 to 6.5 and the density is 2.96 - 3.17.
The difference between Hetian Biyu and Russian Jasper, because Russian jade is produced in the Kunlun Mountains and extends to the rest of Russia. The difference in location, geology, climate, and geographical environment have formed the specific difference between Hetian Biyu and Russian Jasper:
1. From the gloss point of view, although Russian jasper is glass luster, it has a slight porcelain feel and is dry and dry; Hetian Biyu is warm, delicate and soft.
2, from the appearance point of view, Russian jade in the light-transparent place, with a slight observation of the naked eye, you can see the structure of "hair flutter", and Hetian Biyu internal particles are very small, under normal circumstances can not be clearly seen with the naked eye.
3, Russian Jasper body is slightly transparent, hardness between 5.2 to 5.4, showing a lustrous glass luster. Hetian Biyu has a specific gravity of 2.9 to 3.1 and a hardness of 6 to 6.5, which is translucent or opaque.
4. From the hardness point of view, use a small steel knife with a hardness of 5.5 to 6 to make a few strokes. Russian jasper will have scratches due to low hardness, and there will be no scratches on the surface of Hetian Biyu.
5. From the comparison of toughness, Russian jasper has poor toughness, easy to start, and “crackâ€, so it is necessary to pay attention to the cracking of jade lines, and Tian Biyu is not prone to “crashâ€.
6, from the color comparison, Xinjiang jasper is black, while Russian jasper is greener. In general, Russian jasper made jewelry better than Xinjiang jasper, but the price difference between the two is small.
Canadian Jasper
Canada's jasper is mainly produced in the mountains north of Vancouver, Canada. Its hardness is about 6.5 degrees Mohs. It is a kind of nephrite. It is not only the national treasure of Canada, but also the favorite of Empress Dowager Cixi in the Qing Dynasty. Compared with Xinjiang Manas jade, it has the characteristics of large output, more uniform texture, large block size and bright colors. Because they are all mountain materials, the output of Canadian jasper is very large, 4 to 5 tons per piece. Beijing, Yangzhou and Henan have produced a batch of jade carvings made from this material. Most of these works are large in size and complete in texture.
Arctic jade is the top product in Canadian jasper. It is a kind of jasper produced in the Arctic Circle. It is the best in jasper. The delicate texture of the Arctic jade, smooth and moist, green and green, is the wonder of the jasper, the favorite of the princes and literati. In the extremely cold Arctic Circle, the Arctic jade formed by the tens of millions of years of sedimentation and load, and the essence of the heavens and the aura of Nashanchuan is extremely precious. Less than 1% of the jasper produced in Canada is Arctic jade. The vast majority of Canadian Jasper currently circulating in the Chinese market cannot reach the level of Arctic jade.
Canada Jasper is weaker than Xinjiang Manas Jasper and Russian Jasper. The top quality Arctic jade in Canada Jasper has the best texture.
Manas Jasper
The primary mines of Manas Jasper are mainly distributed on the slopes of the Tianshan Mountain in the south of Manas County, Xinjiang. Manas Jasper began mining in the middle of the Qing Dynasty. During the Qianlong period, in 1789, Manas Jasper was stopped. The characteristics of Manas Jasper are: the color is spinach green, mixed with a bit of a bit and strips of white spots, while there are ink spots. The jasper produced by Manas is bright in color, fine in jade, good in gloss, and comparable to Tianyu. It is of the same type as the world-famous “Canada Jasper†and is related to the metamorphism of ultrabasic rocks. In the history, Manas is famous for producing large pieces of jasper materials. With the soaring price of jade and jade in the country, many huge jasper materials have appeared in recent years, which has really added a fire to the jade industry. .
The jasper produced in Tianshan, Xinjiang, also known as Manas Jasper, is grayish green, dark green, dark green, and has a slightly poor quality with black spots, black spots or jade. Jasper contains more than 90% of the fluorite. The texture is fine, translucent and oily. It is a mid-range jade. The hue is uneven and has gray and black spots, and the pure green color is the top grade. The color of jasper is heavy and the color is solemn. It is suitable for carving large pieces of landscape ornaments or heavy and simple utensils. There are many excellent jasper boutiques in the jade collection of the Forbidden City.
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